I think I saw similarly specced (front sus, Deore/LX transmission, hydraulic disk brakes) Scott mtbs in my LBS for about £550, but they weren't WSD.
But worth a look?
The bike has to come from Wheelies Direct (I believe there is a discount on the prices on top of the tax-break provided by Cycle To Work).
There wasn't when I bought my Orange P7 from Wheelies on the scheme - my employer used a small administrator, though, rather than Cyclescheme so you may find differently.
I'd agree with the others - any hardtail in that price range is going to be pretty good, and the choice is really one of personal component preferences, and 'does it fit'?
FWIW, the brakes and forks are both good. The groupset is solid, reliable mid-range stuff.
I disagree that Octalink BBs have any issues - I have an Octalink XT chainset on my On-One and that is on (I think) it's third BB after about 8 years. And it doesn't get mollycoddled...
Besides, a replacement is less than £15, anyway.
ETA: I also agree that a men's bike
may fit better. You need to try it out. Remember, though, that WSD bikes don't only have different geometry; they often also have softer sprung forks and smaller levers/grips. In fact, some use the same frame as the men's, and only make the bolt-on changes. Which suits you is a matter of your size and build.