Pretty well apart from the cracking issues. Had the dhi which peaty was on too. I found mine quite active to ride but i think fox propedal or similar would be a very good solution to that. MBUK rated them pretty well. Travel feels infinite. The i drive system works well.
Would love another one at some point to do as a singlespeed. I used mine for everything and it held up well until it cracked - they dont like dh so much.
The i drive unit was heavy but overall bike weight could be something decent with some thought.
Liking the build, in the process of do one my self with an idrive 6.0. Upgrade most of the original parts, last thing to do is sort the rear shock out.