dunno, it looks alright and fair play to the creator, but unlike z22se.com theres several other forums that already offer the same thing and have been longer established. Migweb, JustOpelVauxhall.com, Vxlscc etc etc. Another site just spreds everyone a little thiner. I'm already a member of several and I just dont have time to check yet another one. The differance with z22se.com is that its unique and offers people with a 2.2 advice that can seldomly be found in more general forums.
I personaly use 3: -
vxlscc.com for genral vauxhall chat and becouse the membership gets me real discounts on insurance and parts, and good events throughout the year and a great local region.
astra-sport.com becouse I have an astra coupe and its good for anything to do with the Astra, but lacks a good tuning section
z22se.co.uk because here we can share objective tuning advise from actual experiance specific to the 2.2 thats very differant from other vauxhall engines, that and becouse everyones just so nice on here! :-D