I've been flying the Explorer in Police & HEMS ops for 2.5 years and it's a great aircraft. It handles well and has stacks of power even with the 206 engines. It is Helipad capable at MAUW up to +26 deg and sometimes above dependant on QFE. The large boxy cabin is ideal for emergency services ops, giving room to work and great flexibility.
There have been anumber of maintenance problems, some down to PAS disorganisation and some down to the aircraft or more correctly to the spares supply from MDH.
The recent meeting at Humberside of the MD 902 user group was largely to address these problems rather than any gripes with the aircraft itself.
The specific engineering problems were largely inherited by MDH from Boeing who did little to sort them out or promote the aircraft.
The blade delamination has been solved by modded blades although not everyone has a full set of new blades yet. The MGBx oil system has been modded and new gearboxes are shortly to come on line. Notar out of balance problems have been largely solved by balancing the fan regularly pending modified blades.
None of these have caused a major problem other that the length of time that it has sometimes taken for spares to arrive which is a problem that MDH are also trying to solve. We have found that MDH have worked hard to sort out technical problems and provide a mod when required. Although these sometimes take longer to come through than the operators would like this may be a little unrealistic given that MDH was a brand new company 2 years ago and they seem to have inherited a disorganised and undeveloped programme from Boeing and that the MD 902 is only one of their products.
Hope this helps !!!