Cycling Touring Club. Maybe the longest-established cycling organisation in the UK. Good source of info and some services, insurance etc.

OP as you know, Revolution is the Edinburgh Bike co-op's in house brand. (And for Fletsbob's benefit, the Edinburgh Bike Co-op has branches all over the UK.) they are generally good bikes with an equipment specification that makes them highly competitive at their price point. And in my experience, the staff are well trained and provide a good standard of service - bikes are properly adjusted to start with, minor servicing and repairs dealt with efficiently, and so on. I'd be pretty confident they'd tension the wheels properly for you, ask to make sure.

I've never ridden these particular models but a friend of mine has the Explorer. It's a not especially light but very adequate tourer, you'd have to move up significantly in price to do much better.