I had a positive support experience.

The delivery driver delivered me somebody else's order. Within 10 minutes, they had refunded me, and were re-preparing my original order (which I received 30 minutes later). I also got to keep the wrong order - I stuck it in the fridge.

Even though the situation was a bit of a mess, the live support worked well for me.

It's very difficult to compare based on individual experiences.

For example I had the opposite experience as you have and have deleted UberEats to stick with Deliveroo.

There is probably not much difference between them.

Meanwhile, deliveroo was the only decent option in Germany and has now exited to market. Lieferando is pure garbage as a product on the restaurants they list.