Take my opinion with a grain of salt - two years later I've gotten a good amount of shots that I like, but I'm still a noob. Photography does not come naturally to me whatsoever. A skilled photog could likely match or surpass some of my best work using an iPhone.
The camera comes with me on nearly every tour, but it's probably 50/50 on whether I take it out. If I was carrying a full size DSLR, I think I'd be more discerning on whether or not to bring the camera. With the mirrorless I don't hem and haw, just throw it in the pack.
If you get a deal on Sony I think a mirrorless setup is a no brainer. The Sony stuff seems to be the most well-liked system in the game right now (certainly the most popular). In my crew there's 3 Sonys, no other Fujis besides mine, and zero DSLRs. We're just a bunch of non-pro millenials though so WTF do we know?
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