2006 RSX-S, 20K miles

My car is going in soon for an already diagnosed replacement of the
clutch-release bearing.

I would like to know what components are accessible or relatively easy
to access while that procedure is being done so I can make a request
to check things out while they're in there. (For example can the clutch
be inspected? how about transmission/synchros?)

The only other issue I have is shifting is notchier and less agreeable than
when the car was brand new and all upshifts/downshifts were teflon smooth.

Matt