Self-checkout has come a long way IMO. I love not having to queue as long or speak to staff. The occasional "unknown item" still happens, but it's worth it. Even better are the ones in smaller shops that don't have a weighing sensor.
Stores seem to have dialed down some of the sensitivity. I don't know the last time I've run into a complaint because I used my own bag or something else that affects weight. One of my regular grocery stores doesn't have self-checkout. The other one has both and I'll wait for a cashier if I have a lot of items, especially produce. But if I have a handful of barcoded items I'll use self-checkout unless there is a cashier's lane with literally no wait.
