I think Unchained and Casa offer very similar custody products and I often say "If you're not going to use Unchained, please use Casa" -- I'd rather have people using Casa than self-custodying with a single key and losing it, or not self-custodying at all.

With that said, Unchained has financial services such as lending, trading, retirement, &c. baked into our platform, while Casa only focuses on custody. I think it's mighty convenient not to have to change your custody just because you want to buy or sell bitcoin, for example -- Unchained lets you go direct to/from cold storage!

Since you're a Casa customer already, you can probably figure out the switch to Unchained on your own, but if you need help check out our concierge onboarding program -- you'll get a chance to experience our service as well.