I've had a mixed experience with Pets@home, but on the whole they have been pretty good.
The one at Northampton I found a bit upsetting, we got there as they opened on a Sunday morning & the lights hadnt been turned on in the tanks yet & no checking carried out (I thought they would have done all of that before the shop opened) I stood at the tanks with my two young children & asked for the lights to be turned on, when they did, there were sooooooo many dead fish
One tank of tetra's were all dead, about 20 fish I would say & the other tanks all had bodies in, several had half a dozen at least.
The one at Wellingborough,Northants, I actually really like, it can be difficult to get a member of staff to serve you with the fish, but when they do they are very knowledgeable & let you know if they think you are making a mistake. One man in particular was great & helped us with our first ever fish, showed us how to tell the sexes, how to choose strong, healthy fish, which plants they liked best & why, took ages with us & didnt seem to mind one bit.
I like the idea of the forms, although I guess you could lie?
I would really like to see the addition of a leaflet or maybe a kit you could buy with ammonia & test strips to do a fishless cycle though, but thats the same for all fish shops, we were advised by pets@home to come back for our fish after the tank had been set up for a week, thats what we did cause we didnt know better