I would not consider them trash guns. The Beeman RS2 series is currently manufactured in China but they were originally Norica manufactured guns and made in Spain. @ 18-19 fpe gun. Usually, fairly long barrels & not too difficult to cock. Think stout D34 with a longer, stretched out break.
They came with two or three trigger variations but the "RS2" version is the most desirable, being a two stage adjustable trigger. Easy to id the rs2 trigger, it has two adjustment screws and the safety lever just in front of the trigger blade is angled, not curved. Far as I know, all current trigger versions are plastic.
The swappable barrels are actually pretty decent barrels.
Bottom line, they are under rated. I would consider an Airhawk the same quality manufacture wise but with a bit better trigger (T05 copy).