Sadly not worth it.
The first time I used it, it worked perfectly!  Now the second time I just tried to use it, it would stop & start sporadically & then I almost couldn't get it to start back up again and I still had 4 nails to go!  The bits and manicure kit are nice & I love the shape & weight of the drill, however I do not appreciate it's unreliability.  So I'll have to find a replacement before I did my nails again.
Rating: 2 stars