I have used this company a couple of times now for ordering prescription food which my dog requires.
The vets charge £57, this company charges about £44 for exactly the same size bag with free 48hr courier delivery. Quite a saving!
They all things pet related, and seem a lot cheaper than your vets.
Great customer service - I have emailed them with queries before, and they have responded within about 30 mins, which makes a nice change these days!
This might not suit everyone, but for the few people it will help, it will save them quite a bit!