Instruct: Classify Amazon reviews into positive or negative sentiment
Query: OK For the Money, But Not Great - Get Real Bosch!

I bought this bit and chisel set for a small job in old concrete. They work, but after just ~10 hours of work the chisels are rounded at the corners and the spike tip is fairly dull. Bits have similar wear characteristics. If you just want a variety of bits/chisels to do a modest job, go for it. But if you're a pro contractor like me and need something that will take a pounding for years, get genuine Bosch SDS-Plus bits and parts. No, I'm not a Bosch rep putting up a phantom review - just a real-world source of info from a real gig.