I have never heard of Status.im[0], but I'm glad that the Matrix protocol[1] and it's major[2] client implementation Riot.im[3]—received significant financial resources. We, a small group of tech-savvy people, tried to use Riot client in the early summer of 2017, but it was far from being convenient for work needs. Poor UI/UX, overcomplicated E2E-keys sharing, sluggish interface (Electron, as you might have guessed)…
My biggest concern at this point is that messages seem delayed sometimes by a few seconds. I don't know if this is an optimization issue, or some deeper problem with Matrix's protocol/distributed nature, but it can be annoying if I'm trying to carry on a real time conversation with someone.
It hasn't affected me too much overall, and I'm optimistic it will eventually be sorted out.