Embraer is like riding in a car whose shocks/suspension have worn out thus you feel pretty much every bump. It wouldn't be a totally unpleasant experience unless you happen down a road with lots of potholes (aka: severe turbulence).

At the same time, the bigger planes fly like they have their suspension in tact, but the potholes are still potholes. My worst turbulence has been on some of the larger planes.

Embraers are just "bumpy" but not any more prone to the more violent turbulence then other planes. I actually got used to the shimmy-jiggle of them at one point and it helped me sleep.