I didn't use mine very often, but when I needed it there was nothing else that would have done the job.
I initially purchased the cheapest one from YardStore.com but found that it was too weak in torque. It would often catch and/or would not even start to turn when trying to slightly upsize a match drilled hole. The folks at YardStore were great, replacing it without question the first time, and then trading it for a larger more powerful slightly used model when the replacement was no better. So I ended up with their model 12690 (
https://www.yardstore.com/acat-small-right-angle-drill) which I have been happy with.
Suggest you purchase a couple extra #40 and #30 bits, as they are easy to break and you can't get them at your local hardware store.
Cheers