I have the Eljer PF2 that I bought 5 years ago from HD.
When I first installed it, I had some troubles, but a quick call to PF2 and I was all set.
Recently, I had some bathroom work done.
When the toilet was re-installed, I started hearing some internal drip noises.
Also, if the toilet went several hours of not being flushed, it wouldn't have as much flush power.
So, at this point I have to decide whether or not to swap out the PF2 with the flushmate kit or not.
I think I paid $225 for the toilet and seat 5 years ago.
In fact, I didn't know it was a pressure assisted model until I took it out of the box. But, I will say I have never had a clog.
I'm on the fence about this, but I think the Flushmate M-101526-F3EK is my best choice, but does come in around $140.
I guess I have some decisions to make...