I checked out today...
-Juno D
-SH 201
-Juno G (I will tell in a moment why)
and V-Synth GT (just to see how machine for Β£1500 works and sounds

It's just a brilliant thing...

but it's slightly different price range...)
Juno D disappointed me as well... I tested it at first...
Synth sounds are allright but they sound too similar even though there are lots of them there. Guitars were just awful, acoustic guitars sounded like some polyphonic ringtones, distorted guitar were just random noise with farting... It would definetely benefit this product if Roland would throw them out from Juno D. Keys felt not natural and kinda sticky, I couldn't feel much when I pushed them. And display is too small as well, it can display only two lines.
At second I got my hands on Juno G... it proper impressed me. Arppegiator is much, much better than in Juno D, kyes are better. It gave much comfort while playing. Synths sounds, brass and strings are really good, pianos are ok, they sound much more real. In general sound is really deep and punchy of Juno G. Something to what you would like come back. Big display is cool and you can easily see what's going on and use of it really easy,. I was told about Juno G before but I thought it's too expensive but after today I see it's worth to wait longer and to save up for Juno G. I talked about money already and it's not a problem to delay this purchase. Well, Juno D is twice cheaper but I would have nothing at all rather Juno D, I expected something better. I had best time with Juno G and I would like to come back to this synthesiser once again
SH-201, so many knobs, I got slightly lost, I would need bit more time to get more out of it. I wouldn't see it as primary synth, more likely secondary one. But sound there is way better than in Juno D but nowhere near Juno G. Interesting thing but I don't think I would go for it yet.
Yamaha MM6, there was one there but I didn't wanted to check it because I was already told off for spending time on playing and not buying

I can't remember how it sounded
It's just my subjective opinion about these synthesisers. I am sure experienced players would be able to give much more broad and detailed views.
I still have to check out Korg X50 and Yamaha MM6 but I don't expect much