For the past few years, I have been shooting with a Canon 80D, then 90D, both DSLR systems, and still love and use my 90D. This past February 2023, I decided to buy my first mirrorless camera, the R6 MK II (plus the RF 100-400mm, and EF-RF lens adaptor), and can't tell you enough how glad I am for acquiring that camera. I haven't even finished setting up the camera for wildlife shots yet, but already took some shots and OMG ... what an amazing camera it is!! I'm really 100% satisfied with this purchase and can recommend to anyone still undecided to go ahead and commit to that purchase. The R6 MK II is an absolute fantastic system. Thank you Canon!!