We bought this little marvel, because we just renovated an old Austragshaus. If you look after your purchase trouble, then why that one has not struck sooner. It's a real workload. But the hammer, how fast it conjures up old mortar remains of the wall. We've also had almost capitulated because the old plaster residues prevented the old walls that the fresh plaster keeps decent and wanted to apply drywall. With this tool the issue was taken care of quickly. Even the adhesive remains of the old floor tiles were quick story.