The OP-1 has been out for a while now. What’s nice is they make a point of talking about the industrial grade components and construction, and sonically it is anything but toy-like. The OS is also supposed to be incredible, and the 4 track ‘tape’ mode is apparently unlike anything else out there in software or hardware. Still pricey but I believe it’s worth it. I myself, like the sound of the teenage engineering op-1, check it out at MusiciansFriend.com
If you love to spend hours and hours creating the perfect synth patch instead of making a song (unless you’re working on a “the patch IS the composition” type of patch – nothing wrong with that!) the OP-1 is not for you. If you’re more about laying down musical ideas quickly and not spending as much time on patch tweakage, then maybe it’s for you.