The Roland RD-250S is a qwerky little board. I like the action on the one that I use occasionally. It's very fast. I believe it's "weighted" with springs, not weights, so it has a very vast return. Similar to what a heavy synth keyboard would feel like.
The piano sound isn't great for piano solo, but it'd fit fantastically in a rock band context. I find that I like piano 2 better, its a little brighter and a little more realistic. The most realistic piano on there, however, is piano 3, the electric grand preset.
The clav is amazing, I truly love it. Although it is a bit painful to do slapping techniques on that keybed. I also love the vibraphone, with the brilliance down low. If brilliance is too high, then it sounds pretty digital. Harpsichord is okay.
I L VE
the electric pianos. E.Piano 1 is a great, yet different Rhodes. It has a unique character of it's own, yet still feels Rhodes-y. E.Piano 2 is a DX-7 FM style ep. It's actually one of the best I've played because it isn't ultra-cheezy and I'd actually use it.
In your "effects section", you've got tremolo and chorus. The chorus isn't adjustable, but it doesn't really need to be. It's a very nice slow chorus, great on the E.Pianos for making them a bit fatter. The tremolo is absolutely phenomenal. In mono, it's a nice pulsing tremolo, but in stereo, its a full on l-r panning auto-pan a-la the Rhodes Suitcase preamp. Gorgeous. I wish I could route external sounds through it.
This thing is a BEAST however. It's gotta weigh a good 60 pounds, at least. Plus, mine has a full-on flight case. Definately a two person lift. And its probably a good one 1 1/2 feet deep, great for stacking another keyboard on top.
I'd play it yourself, if you can. It gives off very different impressions. You may love it and you might hate it. If the casio's that have been mentioned here (i.e. the privia series) are un-available to you or out of your price range (I'm not sure of pricing in Ireland), then I'd definately consider it.
(edit: included review of the effects, which I accidentally left out before and fixed some of my opinions so they're a bit more clear.)
(edit 2: fixed some dodgy spelling in my previous edit :rolleyes: )