I've never used another photo booth company so I have nothing really to compare to, but in my opinion, Photo Booth Express did a nice job with our wedding! The planning is very easy, and they are in contact with you (through email for us, we pl...anned from about 700 miles away) when they should be. Everything was set up well in advance, and if you have any questions just give a call or email and someone answers promptly.
They are also very flexible - we were allowed to bring in our own props (which sadly we forgot) although they had quite a few unique ones there. Also, the photo album they give you is nothing special, just a plain black cover with white pages (I think they let you pick black or white). I'd read somewhere else that you can bring your own, but I thought this one was good enough - just nothing fancy. I also agree with previous reviewer... we had guests asking what the big black box in the corner was, maybe if they provided a large sign outside of the booth so people know what it is, it would be good advertising for the company too - we ended up just having our DJ make an announcement about it.
As far as the actual night, there were two attendants - I think one was a trainee. They were both nice, however I am not sure how much they interacted with and helped our guests, and how much they just sat there and talked to one another. But I guess it's not really about that - it's about the actual photo booth pictures, which speak ... well... they are HILARIOUS and fantastic, and definitely worth every penny! Everyone who was in there enjoyed it, and we're enjoying all this blackmail.... :)