We used them a few years ago... They did okay. I was working all day and came in after the guy was well into the project. I was NOT HAPPY with the work he had done. I made a call to the rep who had given me my estimate and he had a guy out there within the hour to look at the work. He wasn't happy either so they ripped everything out and started over.
So... took a little longer than it should have but at the end of the day the install was pretty good. Looking back, I personally wish we could have spent a little more and done tile and all that... bought a new tub. Based on price alone, we did improve our bathroom quite a bit though. My wife didn't even like taking a bath in there before because the tub was old and stained... with the BF cover up, the whole bath and shower stall felt new to her... made her comfortable to relax in her tub... and she was able to design it exactly the way she wanted. Not to mention I was able to have them raise the shower head to better fit my height. All in all, not bad for the price.