jamrod
2
Yes definitely. A4 has enough going on that you can make entire tracks on it - though obviously it’s different in that you have to synthesize percussion from scratch, don’t have poly instruments, etc.
I think that kind of limitation is useful and forces you to do more with each track. That said, the stuff I’ve made with just the A4 so far doesn’t sound the way I want it too yet, as I’m still learning to program it well. There’s a lot more opportunity to carefully sculpt sounds. And just being able to return to your ideas and revise them later is a huge step toward making real tracks on the A4. The sound is a lot more inspiring to me, even if you have to work to find the sweet spots. The FX are great.
Portability: if you care about this (I do) there are rechargeable batteries like this one: http://www.bhphotovideo.com/c/product/618847-REG/Tekkeon_MP3450I_myPower_ALL_Plus_MP3450i.html
I agree with you on the OP-1, by the way - I love using it but don’t love the basic synth sounds. I do like sampling on it - I like making making more hip hop sample-y stuff on it a lot. And I have some kind of emotional connection that keeps me from selling it even though it doesn’t make its way into too many finished tracks.