Another thing to think about is what they supply, they very often cater to "normal people" ie people who have a pedal bike nad a mower in their garage.
my garage was broken into a few years back and tools stolen, when I rang to list what was missing they said they only dealt with halfords or Draper.
I said about my snap on stuff and they didn't deal with them...so you need money to replace not new for old, where they supply you replacements.
Also my bike is in a locked garage but when I am working on something else I wanted the flexibility to leave the bike on the drive, so when I did my go compare thing I said it was on the drive locked up...2 quid cheaper than a locked garage !! wtf ? its always in the garage but got the choice now.