I was hooked as soon as I started to mess around with it - Forget the Supernatural synth engine, on the Jupiter 80/50 and Gaia etc. This is the real successor to the JP8000 which I've been waiting ages for.
I don't know how or why people have described it as sounding "thin", far from it once it's hooked up to a decent sound system. The Jupiter 8 and Juno 106 plug-outs included, sound equally impressive (far better than the Boutique versions IMHO)
I'd say I was pretty critical when it comes to synths - Korg's Odyssey, Minilogue and Roland's JP-08 have all gone back for a refund after a few days, due to various glitches and bugs, but I seriously can't fault the S8 and I've even jumped in and subscribed to Roland Cloud for the extra Plug-outs.
I've gone to Youtube to watch a few demos, and I have to say that they don't do the actual synth any real justice - You need to go and try one for an hour or two.
It's not often I say this, but I'm really impressed with it.