My riding buddy's DH has both a Bacchetta Corsa recumbent and a Cat trike recumbent. He mostly rides the Bacchetta on paved road rides, rides the trike on shorter rides on dirt roads. But he does roll out the trike for a Saturday morning club ride occasionally. I think his main beef is that he's a bit slower on the trike (but he's usually riding at the front of the group anyway, so "slower" is relative) and the lower (in both senses) visibility of the trike on the road. He's done several things with flags and flappy streamers and bright colors, so that helps.

His DW has ridden his trike, as have I, with cushions behind our backs so we could reach the pedals. It really is the most fun I've had on an adult bike--so responsive, so comfortable. But as others have mentioned, pricey. I think he got his by timing it to coincide with an income tax refund.