I had a DL4 then recently swapped to the Oly PEN to get me started on a compact digital camera with manual as well as swappable lens (in particular Leica M) in the preparation of getting a M8..
2 months later.. I get my hands on a M8 & 2 days of steep learning.. The PEN was an almost instant success for me (8/10 pics were IMO excellent for my level & more than enough for WAYW posts), as for the M8 it is frustratingly good - that is you have to work it (I may get 2/10 pics, but DANG it's a joy).
Yesterday was my 1st day of using a M8 for my WAYWT pics were with the M8 + CV 35mm f/1.4 (except of the ones of the M8 - that was by the PEN + 17mm kit pancake lens)
I'm liking the challenge..