YSB has inherited the Dash-300. Plenty of mechanical issues and sub in the 37 seat Dash 100 when 50 seaters go mechanical (based on Dash-300 a/c) causes plenty of headache for staff here.
The 300 allows for sky-check ,but certain Fins have row 13 facing row 1D-F with inherent lack of overhead bin space for 6 passengers and their carry on items.

The Q 400 has all roll-on bags come onto aircraft, IOW no sky-check. Some aircraft have undersized over head bins.