A bit of experience - I looked into one before getting my XK3c, and the dep Hammond chap in my band uses one.
His is the 1st version of the Electro. Good sounds, if a little bright. It's limited for Organ due to only having one set of (virtual) drawbars. EP sounds are great. I think it has a clav too? Action is interesting - very light, only semi-weighted, and designed to be a best compromise between organ and piano actions. It has waterfall fronted keys.
I few people on various forums swear by the Electro2 over the newer Electro3 as selecting presets/voices on the go is a little less fiddly.
I'm not sure that the Electro2 has the upgradeable memory of it's newer brother though - with the Electro3, you can download new sounds (Nord just released some newly sampled pianos, for example) and add them in.
All in all, if you're after something as maybe a 2nd keyboard for a gig-rig to take care of occasional lead organ parts, or EP/Clav parts, the Electro is pretty hard to beat - I think it's reasonably industry standard.
Don't get it if you're really after a stage piano though.
Thanks for your thoughts. I'd probably be looking at the Electro 3, and it would be a second keyboard for most gigs or a main one for tight venues and rehearsals. I've played on the Nord Stage in various forms and wasn't hugely impressed by them, but the portability aspect of the Electro interests me. It would be for organ stuff primarily.
Already got a stage piano (RD-700) so don't need another one of those
arty