I have flown the 146-200 aircraft with AirBC and AirNova (Air Canada Connectors) and have generally liked the aircraft. They're reasonably modern, are quiet, and with 5 abreast seating are quite roomy (impressively so). They also can be operated off of loading bridges, just like a bigger jet. And they can accomodate a business class. They do, however, have some downsides. The 4 engines aren't as efficient on smaller aircraft, and I am told they are somewhat harder on maintenance, although I've heard ramping them isn't bad. From a passenger view, they didn't have audio or video entertainment, and the overhead bins are a bit small. They are, however, an older design. My books show them as being thought up originally in the '70's with most design work undertaken after go-ahead in '78. I have to wonder whether between the competition from new RJ's, the extra 2 engines, and the generally older design whether the BAe RJ line has a future of more than just a few years. I think it would take something more drastic than the RJ-X concept to really rejuvenate the aircraft. Maybe modifying it into a twin would work, but even there it lacks family of other aircraft in the 50 seat category.