Pebble Time + Misfit Flash + MFP workflow

I was curious if anyone might have some experience with using a multiple device tracking setup with a Pebble Time and Misfit Flash with MFP and iOS. I've been a Fitbit One user for years but recently bought a Pebble Time Steel which doesn't really integrate with Fitbit at all.

Previous to the Pebble I had a Fitbit Surge but ended up selling it because I found the GPS/heart rate functions killed the battery too quickly and it was really quite a limited device. I kept the Fitbit One around because I could wear it on the sly at soccer without having a referee have me take it off because they don't allow jewellery and watches. I found the Surge/One did work as a pretty good tandem that I could use wear for different purposes.

Now since the Fitbit doesn't really integrate with Pebble the Misfit Flash caught my eye as something I could probably use very similarly to my Fitbit One, wear it while playing sports, then wear my Pebble whenever else. The thing I'm wondering at this point is whether the Misfit data plays nicely with MFP. I read a thread on here mentioning people having issues getting Misfit and MFP to sync properly, wasn't sure if anyone might have used this type of setup on here before.