there really are no overhead bins to speak of. The bins are only on the 2 seat side of the plane (seats are 3 across as 1-2). They arent deep nor tall. So think of storing a winter jacket or a something the size of a purse at best.

Anything that wont fit under the seat in front of You, will be taken away at the Gate and returned to You at the Gate when you land. At least you wont have to wait an hour at Baggage Claim.

As for connecting flights, no sweat if you are flying into CLE also on a RJ as you will come into the same concourse as you are departing. If you are arriving in or connecting to a Mainline jet then you will have to deal with 2 different concourses and a very long way between them going up and down a very long escalator on each end.