I just did one too. 125G, 50G on the side as a grow-up, isolation tank. Neat, clean, easy to get to - I have mine at waist/chest level so that I don't have to bend over anymore and I can store stuff underneath it (also less head upstairs).
All that I have to do to change water is move a few ball valves and wait for a minute or two.
All that I have to do to change water is move a few ball valves and wait for a minute or two.