This is the one I have and it works well keeping my humidity in the lower 40% and higher 30% and anything else. The tanks in the room it’s in are
3x 20 high
3x 29
1x 40 breeder
I also had a 75 running at one point in that room.
In total 262 gallons, a decent sized fish room for average fish keepers. Before this dehumidifier I had a 75, 55, and a 29 I think for a year or so and with the temperature always a low 80 and the humidity in the high 80’s I developed upper respiratory bronchitis due to it. Spending more money on a better dehumidifier is always worth it.