I can vouch for the Roland JDXi, it is in the MicroKorg league as it is quite preset based (though it has quite deep functionality under the hood, which third party editors make easy to get at). It gives you 4 synths at the same time, one basic analog synth, 2 digital ones (decent analog sims and pcm based stuff) and a drum machine (lots of roland kits and some others), and a step sequencer. So you can make sequences with lead, pads, bass and drums all in the one device which is quite satisfying. Think what it lacks in hands on tweakability it makes up for in general accessibility and ease of use, though does have some hands on control of key parameters. Definitely not suited if you want to learn about synths and sound design, but for easy accesses to some good sounds with the ability to quickly combine them and start making ideas I think it is really good. Ideal sofa synth