First, I can not speak to the pros/cons between the two style trikes, as I have only ridden tadpoles (single, drive wheel, in back). They would be a tad tricker on bike paths, but like anything, keep that in mind when you approach corners or crest hills. In otherwords, I would be more worried about sending an approaching bike off into the bushes due to the shock of a 30" wide trike approaching from the other direction. As for heat, they are slightly warmer than an open bike, but most of the velomobiles have great venting which channels air into the bike. As for me, I plan on riding my Vision R40 on the truly hot days and use the Mango for 70F and lower.