cpt says :
Another concern on this type of helicopter is its emergency exits... russian certification standards are very different from those in the "west".
I know the Mi17-1 cargo has 2 jettisonable windows on its right side with the big front left sliding door (also jettisonable) ....the clamshell doors at the back are very often obstructed by freight an luggages, an are not designed to be jettisoned as well as the cargo sling hatch.
Besde this the 17-1 (in my CIS time) was certified for cargo flights and "service passengers" only.
I believe the 17-2 is an improved version of the 17-1 with a proper certification for public transport, and I hope if this is the case, that the emergency exits issue has been enhanced.
Most of the time, on international market, former CIS certified aircrafts can offer very attractive costs and very good performances, but "westeners" users also very often forget that insurances policies use to require a FAR certification standarts for aircrafts.
Despite this, the Mi 17 remains a wonderfull helicopter.
cpt .. your concern is everybody else's as well.