jason at germaine marine has done dozens of gsa installs and he will attest to brian's comments being a game changer compared to the manual system you have now.

if it was my coin to buy a set, I'd go gsa and not look at any of the other systems out there regardess of what oem's are using. too much press on people switching from one tab to gsa and results being night and day. their product seems to offer the best out of the box results compared to others' tabs.
there's a reason gsa is/was factory on tige's since 2019 and mb's longer than that.