Kraken I trust but I've never used. For perspective, I've traded roughly a million dollars worth of BTC specifically. Most of that was as the knife was falling after the 2017/2018 ATH.

DCA-ing since then, selloff at the top in 2021, pull my limit sell orders, let it crash.

Doing it again now, kinda hard not to take advantage of deflationary 4-year super cycles