I've gone both ways - used N1MM as my everyday logger and using a "full featured" logger, in recent years DX Lab.
I found there are really only two things N1MM doesn't give me, and one I don't use - award tracking. I just never use those features.
But, the other thing did convince me to use DX Lab for day to day logging - LotW/eQSL upload. From N1MM you can do an ADIF export and upload using TQSL for LotW and manually into eQSL. Not that difficult, but for LotW then you have to keep track of when you last uploaded.
I guess one other feature would be the QRZ.com data integration if you pay for subscription to the QRZ API feed - autofill of op/location information into the logging window is kinda nice.
73 John K3TN