EM1 Mark II or EM1 Mark III?

Hello,

I have been the OM-D user since 2012. I still have my old OM-D EM5 (2012 first generation) and an OM-D EM1 (Mark I first generation) I only use my 2015 EM1 first gen (the EM5 is still OK but I do not use it for a long time now)

I want to sell both camera bodies and purchase a brand new body or a second-hand one in excellent/near new condition.

I want an EM1body. From what I have read, the image quality of the EM1 Mark II and EM1 Mark III ​are identical. Their size and weight too are almost the same and they share the same 20MP sensor.

I know that the Mark III has features that the Mark II does not have. What are, according to you, the EM1 Mark III features that make capturing images more fun and pleasurable/easier than with an EM1 Mark II and justify the difference in price?

For a while I have been thinking of an EM5 Mark III, but I prefer a sturdier body for my Zuiko Digital Ed 7-14mm f2.8 Pro, which is a relatively long and heavy lens which I use mostly for interior design photography

Thank you very much.