In reply to GrahamD:
Typically, for me it was HVS 5b. A horrible grade, could mean a wide range of things - whereas HVS 5a generally was just fine, what you expected. E1 in a strange way generally felt a bit friendlier, tended to be 'what it said on the tin'. E2 also, seemed generally more or less what you expected. Looking back, to generalise hugely: Mod - V Diff, always very friendly; Severe, a bit odd, could be nasty; VS usually just fine, often very nice and friendly - a lovely grade, at bottom end of 'real' climbing; HVS, as above: E1 and above, again more consistent, sometimes nasty, often v good/deeply satisfying.