Emb135/145
Never flown either. However I do PAX on them probably once or twice a month.
Cabin is noisy, tiny with absolutely no space to take any carry-on with you. Overhead lockers are a joke even compared to Fokker 50 or the Dash.
Only spot where there is any legroom on the Embryojet is at the overwing exits. The 3 abreast seating never works for me anyways as I seem to get the window spot with a "BIG fella" of 28.5 stone sitting next to me.
While flying the ride is uncomfortable if there's any rough air around (High wingloading? Or stiff wing?). It flies like a small airplane it is.
Speed of 0.7M @ FL370 won't make a difference on a 200nm to 300nm sector. EMB145 is about 5 to 10 minutes faster than DHC8-400Q. Mind you on some sectors TP will actually be faster than a jet.
Still how much legroom or ellbow space do you have in any of the competitors? Not much or not at all.
My preference is still a larger cabin of Fokker 70/100 or a DHC product be it DHC8 or CRJ.
JJ