Took my road bike on this one (Fuji roubaix pro).. there are about 15-25 crosses between the trail and the road.. rarely have to stop.. some very slight inclines but mostly flat... also, you have the option of getting to Annapolis, but you you’d have to be willing to get off the bike trail and go onto a highway (something I gave up on lol) ; parking
is available and plentiful at the designated start spot( near bwi) and wasn’t too crowded during the weekday and around noon..