I did like my inflatable fishy pool - but am considering a rental this time for two reasons
1. Depth - the videos I've seen with "offical" pools, the mamas look to be much more covered - my belly was still partially exposed when I was semi-reclining.
2. Support on the sides - when I tried to squat the inflatable sides did NOT provide enough support - and both my MW and DH had to try and hold me up...it did not work and I gave up.
Pro's of the inflatable
-very comfy to lean back against the sides, or rest head on the sides in hands and knees...and very comfy with the inflatable bottom.
I was in the pool for four hours or so - and we had to dump off water once and add hot water, but I barely noticed. We filled it with a hose from our bathroom, and emptied it right out our second story window (dh found mec on the rocks below the window weeks later!!)

Jeanette