We used one in our tent, always. Worked great in summer time here in Central Florida. When our friends come camping with us, I have to bring it all the time. Lol
The only problem is some use two hoses, one big to vent the hot air and one small for the water, Some units have an tank-less evaporative system or internal condensation and use just one hose for the heat. Some models and brands have as an accessory a large reservoir that mounts on the back to help with this problem. I know that for most the small internal tank is too small if there is higher humidity.
But that drain is intended to be run to a drain, not a bucket. The problem is that it prevents the internal tank from filling and shutting off the overfill safety. That means if you happen to forget about it the bucket can overfill then you have water all over the floor.
If possible you want that drain line to go to a drain, outside the camper, or maybe a sink. It has the potential of making a mess, causing a leak.