For me it took some time to get used to Jolla, mainly because of it's size and sharp corners. I have no complaints about the performance or the UI, it has evolved since the N9. Regarding features, at the moment N9 beats Jolla hands down. It shouldn't be that big suprise, Sailfish is still very young platform and I have all the confidence that it will evolve and missing features are added rather sooner than later.