Egyptian perhaps, but (Russian) MAK have a worldwide reputation and I would not for one second hesitate to accept their findings.
They can do a decent job if they are allowed to, but there are no guarantees that they won't be told to manipulate conclusions / sit on evidence for political reasons, and there are no reasons to think that they'd refuse to cooperate.
Personally, I'm still waiting for the final report on Tatarstan Airlines Flight 363 (hull loss with 50 fatalities in November 2013.) It's been almost two years, there has been no report, and the whole thing seems to have been either forgotten or intentionally buried by MAK.