If you are simply going to do "your version" of a cover, then yes, BB/RB will do a fantastic job.

If you go to a bar and listen to any cover band, 98% of them are doing interpretations on the songs anyhow..... not too many bands do exact covers.

Back to BB/RB covers.... every now and then however, BB/RB will do an amazing job on a cover. Depends on the style. However, it will not play the human creative aspects of the song.

I think it gets closest when you can play the guitar and keyboard parts yourself. I have one cover that I used BB/RB for drums and bass..... and I played the guitars myself. It sounds amazingly like the original band's version. Except for the vocals.....

You can find my music at:
www.herbhartley.com
Add nothing that adds nothing to the music.
You can make excuses or you can make progress but not both.

The magic you are looking for is in the work you are avoiding.