It depends on the way you see it. Many computers do not run android studio, and some people have no money to buy a compiler. So for some, it's not just a tool, but a solution. Especially for those who have Construct 2.
That's fair. Although, before this tool, you know you could've just used PhoneGap, 1 upload and it automatically builds into an .apk. But I think you guys prefer this since it has built-in plugins too. Then, I guess this is a beneficial option for Construct 2, more options the better.
Regarding the build of Construct 3, in my view, Reinarte is superior. For some APK's I tested, and had better performance and stability with Reinarte. But it is my point of view.
I don't think performance is up to the build option you take, the factors are mostly from the runtime (c3runtime is faster in benchmarks), game design, Webview, Chrome version and especially specs.
With that said, I haven't used the tool nor know the features, and I can see the much work put in to this community project, well done.