I bought to replace my h9, and it's absolutely worth it. I was able to program everything I wanted without an app, which is a big plus for me. Having two effects on at once really opens up the possibilities. I programed a polyphonic octave sound, to simulate an organ, and added a leslie sound after it, for example.
Cons - The tuner is hard to acess when in perfom mode, which makes it useless. I was planning on removing the tunner from my board, but wasn't able to do so. An update here would be great, and that's why I gave it only 4 stars on ease of use.
Also, having IR loading capabilities would be great. I'd love to be able to add some spring reverb and cabinet IRs to it.