These small units are really convenient and super powerful, loads of features!I purchased the S-1 & J-6.This review is for the J-6...There's a little learning curve but after spending some time with it I really like it! The sounds and effects are very impressive, sequencer is fun to experiment with. Arp takes a little while to understand (compared to typical arp functions) but there's lots of inspiration to be found once you mess with it for a while. I like the fact that they generalized the synth parameters on this particular unit. Good idea and keeps you more focused on chords, rhythms and ideas more than synth editing.

I honestly only bought his to have a travel sized midi controller but this is soooo much more than I expected. It being a synth with awesome sounds in a small package is great and then the fact that it plays chords and arps and phrases just makes it 10x better. I went from thinking it would be a travel controller for my iPad to connecting it to my synthesizers and MPC. It’s become a main piece of equipment. Great purchase, you won’t be sorry you bought this.

Superb Musical Instrument with very sweet sounds. Compitable with DAWs like Abelton live lite and MPC Beats both. Synchronization with other synths works very well.

I have the first three Aira Compact devices, and will probably add the S-1 down the road, but the J-6 and E-4 are amazing, and the T-8 is great to connect in with those two.As others have mentioned the J-6 shines as a way of coming up with new chord progressions. You can set it to play these little arpeggios, and it will only play things in the appropriate scale or key that you are in. There are a bunch of different sounds that come with the J-6, but honestly my favorite part of this thing is bringing into your DAW as a midi controller. I've tested it in ableton, reaper and last night was using it with my Maschine in the Maschine software.Mind blown. I can take some cool sounding lead instrument in maschine, run it through the J-6, and it will start making these arpeggios with the sounds I have in maschine. So it was fun with the 64 sounds that come with it, but then you factor in the 1000's of digital instruments I have on my computer and you have seemingly endless potential for creating new chord progressions.It's pretty much a cure for writers block.

Lots of chord combinations. Easy to change key. Arpeggiator a little more tricky. Overall, lots of fun.