I use Stripe for CC processing, I don’t really log in, I use Xero which then calls on Stripe to take the payments (when issuing invoices). There is a control panel where you can do a lot of things by hand, but it’s very much built with the idea that it’ll be the back end to something else.
I also use uplisting.io for channel management and (on probation) Beyond Pricing for rate setting.
@uplisting is the only reason I’m able to work with booking.com and Airbnb at the same time. Support is good, and it has serviceable message automation - so I’m pretty happy there.
Beyond Pricing is expensive, and less smart than you’d hope, but I’ll stick with it for a bit.
And then - as I mentioned - Xero is there for bookkeeping / tracking of monthly profitability and for my accountant to prepare tax returns from.
That’s quite a lot of separate tools. I’ve tried & ditched loads more over the last 12 months - so any other success stories appreciated.