TOSOT 10,000 BTU Portable AC 400sqft (Open Box)

It's a very good unit, works as advertised. As with any portable A/C it is noisy, not much to do about that - I understand people complain about noise from portable A/Cs, but you do have a loud compressor in a small machine close to you, so unless you start to get very expensive, noise is unavoidable. For the price, it's an amazing unit. If I'm not mistaken, TOSOT is a subsidiary of Gree, which I had previous experience with, so this was one of the reasons I chose this unit.I only wish the lowest fan setting was even lower, but I assume you need a minimum airflow through the evaporator, so it is what it is.There are two water drains on the unit - a top one, which comes directly from the evaporator (i.e. the cold side, which generates moisture), and a bottom one, which comes from the water reservoir. If you use the top spout it'll output water as it condenses (while the unit is working), as water passes the top drain before going to the reservoir below. I just keep a small container behind the unit with the top drain hose in it and it works perfectly - just check and empty it once in a while to avoid overflowing. The same can't be done with the bottom spout, as it's very close to the ground, so you either have to take the unit somewhere to empty it at a floor-level drain (bathroom or outside, perhaps), or accept that you'll always have some water left in the reservoir and may have to drain more often. The bottom spout route is safer if you are afraid of overflowing the container, since the unit stops working when the internal reservoir is full, which obviously doesn't happen for the top spout. Either way, the amount of moisture (and how often you need to drain it) will depend on how humid your room is and other factors.The X-Fan feature is something I'm not sure works or not...it's hard to tell, as it still generates water with the feature turned on, and I don't mind anyways. You can only turn this feature on with the remote, by the way.Only issue I had so far, which is not really a problem, is that I couldn't get the compressor to turn on in Cool mode when I turned the unit on for the first time, even at the lowest temperature setting - it was like the thermostat needed calibration or something. However, after running it for a few minutes in Dry mode (which forces the compressor to run regardless of the temperature setting), the Cool mode started working normally and the thermostat was matching room temperature in a couple of hours, so I guess it just needed some breaking in. Customer support was very quick to reply and helpful all the way, which was good.To be honest, if you want something better than this for a small room and need it to be portable you may have to buy a dual-hose system, which is larger and much more expensive, albeit a lot more efficient. If you don't know how a single-hose portable A/C works, it basically uses part of the air from the room it's in to cool the condenser (hot radiator) and exhaust that warm air outside. In other words, some of the cold air from your room will be thrown outside, while warm outside air will be pulled in the room via other inlets (like under the door) to compensate - so it's a very inefficient system by design.This one cools just fine but is not too powerful, so if you want to cool a larger room or if it's very hot where you live, you need to invest more money in a larger unit, there's no way around that. I strongly suggest a dual-hose system if you'll be using a portable A/C all the time to cool a larger room, as the additional investment pays for itself in terms of power savings and overall cooling capacity. This may seem obvious, but it's also important to note that if you're going to leave it stationary and have no plans to move it around, a window A/C is always the best alternative to any portable A/C unit, be it dual-hose or not, if there's an installation point (a suitable window) - lower noise, better reliability, higher cooling capacity vs. power usage, and smaller size. So keep that in mind - paying to install a window A/C is normally better than having a noisy and inefficient portable A/C just for the "portable" feature that you may not need, as the investment will pay off over time (power savings and comfort). You can pick up a window unit with the same cooling capacity (and just over half the power consumption) as this portable one for around $280~300.I bought this portable A/C to condition my home office, which has two computers plus other electronic equipment, so a lot of heat generation (like having a 500~1000W space heater on) and, thus, a temperature imbalance compared to the rest of the house. I'd need to freeze the whole house with the central A/C to get the office more comfortable. What I do is just leave the warm air hose exhausting to the living room, to be dealt with by the central A/C, instead of blowing some of the conditioned house air outside, which would likely be even more inefficient than a partially-open door. Works very well to bring the office temperature a few degrees down to match the rest of the house.