CAA's General Aviaton Occurrence list 1.11.99 - 17.1 00 reports a VSI and a laser beam problem with the EC135.
The MD900 has pitch link problems - would you trust a pilot to maintain your helicopter?
It also reports the MD900 having a double salko and triple toe-loop characteristic - worrying.
The Romney Marsh A109 Power looks interesting - or even more worrying.