Not too bad
I just started doing my own nails and bought this brush.  It held together well through it's first use - bristles held their shape, handle stayed connected to the brush, but I personally felt it was a little wide and I ended up with acrylic on my cuticles - I blame myself for this, and not the brush.  The one thing I did notice, when I cleaned it, the part of the handle that was in the brush cleaner (for seconds) became very tacky.  Although it seems to be holding up fine - I will edit review if this changes.
Rating: 4 stars