The Q400 is a typical modern design - under-built, fragile, and built to a price rather than a decent set of design criteria. No wonder they have had so many problems with it.
They might be great when they are shiny and new, but a few years from now I am sure that flybe will be very sorry indeed that they ever got involved with them.
They might climb reasonably well, but in every other department, they are a complete dog.