I was in the same situation years ago, ended up buying one online that had good BTU rating, remote, and other bells and whistles. I was unimpressed with the documentation when installing it, and had to really screw with the window adapter and tubing to make it work.
It worked great installed in our bedroom for almost 2 summers, kept us cool so we could sleep without opening windows (and letting in biting things small enough to fit through the screen). When it started to suck I thought, no worries, just needs a coolant recharge. Unfortunately for me I had purchased a product from a shitty company. Unit was sealed, i.e, no recharging. You only find that out when you call them upset; sleazy bitches made no mention of it in product descriptions, on the box, or in the manual. So, beware!
Ended up replacing it with an LG unit from Lowes. It was rated at lower BTUs than the POS that came before it yet did a much better job, and at a lower wattage. Cheaper too. I remember being impressed at how little water it produced, apparently LGs "Evaporative Technology" is not a gimmick. With the first unit I was emptying my homemade reservoir every day. With the LG it was once, maybe twice a week.
So my advice is to check out LG.