The two horizontal strings broke twice after a few balls were hit. Being strung by the same guy/machine in the same day, I took my grievances to him. The poor guy had no idea what to do, so I summoned another guy as it was expedient the racquet got done well. I'd say be aware of the stringers and their machines that may not be what they are advertised. Say for example, this digital Babolat tennis machine that was used in my case has a counterfit chip inside to function and perhaps a sloppy individual to operate it too.