I've predominantly used a credit union my whole adult life. The one I use is smaller so loans and such have a higher threshold to meet. It also means that the interest rates are negligible on my accounts (0.01%), however I've also never really had any issues with them, their service, or locations. I've never had to deal with any fees, or transaction disputes.

There is one perk that I wish they had that you'll really only find at the big banks: international free ATM withdrawal. While niche, if you travel a lot it might be worth it to set up an account with a bigger bank that supports that, even if the account is only used for travel.