@ tonyyeb
I'd say if you have the chance to get a Pegasos, take that chance. A Pegasos with MorphOS is IMO the best "amigaish" system you can get.
Fast, stable, advanced, beautiful.
Anyway, if you like to tinker around, then get an Efika: It's a fun device - you can do nice things with, but it has its issues. The ide controller is slow, the RAM is limited, The usb is 1.1 and the cpu has no L2 cache. *But* if I hadn't one already, I would get one again.
MorphOS current public release has some issues on the Efika (on the Pegasos it is really stable, I have both maschines, the Peg and the Efika). But I am optimistic to see a bug fix release soon.
Indeed the Efika really may not be everyone's cup of tea and if you have concerns you may probably not get satisfied with it.
Best of course is to test it in real life.
My Efika got me some fun already and the EURs spent on MorphOS for it hurted that particular day, but was forgotten the next day already. It's a nice silent device from which for example I can tye amiga.org comments while lying comfortable in my bed...
If you don't like to/cannot spend some currency on exotic and dedicated hw, you'll either have to stick to AROS and/or UAE (which can be quite some fun too), or have to wait until MorphOS for the Mac Mini will be available.