Be very careful with two wheel recumbents, I've got half an Ikea's worth of steel bits in my right leg on account of one. The danger is in when your foot slips off the pedal even for a moment and hits the pavement on the downstroke, you'll brake with just that one foot and it is a feed-forward mechanism that you can not break out of. Nasty, to put it mildly. If I had foreseen that particular failure mode I'd have either foregone the bike entirely or I would have placed something underneath the cranks to catch my feet should I ever go there. The lower the bike the higher the risk of this happening.