Well, I had a delusion that Uptrace will have clean and simple UI, but I guess for others the UI is just as confusing. :(
I think we've done pretty good job with filtering+grouping+aggregation and data exploration in general. That is something I am proud of.
Uptrace is significantly cheaper.
As for the rest, it is the same but different. DD is bigger and more complex. I guess that is not the problem when you get used to the UI.