"I had two problems. Firstly, If I wasn't positioned just right, I found it difficult to apply enough pressure to stop it from jumping away from the wood. When I did hold it tight enough, it drove home both 22mm staples and 25 mm nails satisfactorily. The second problem was when I changed from staples to nails. I didn't realise that, when I emptied out the staple, there was one staple still in the machine, which caused it to jam when I tried to use the first nail. Now, when I change over I check that the chamber is empty before putting in the other fixing. No more problems. I obviously don't yet know about reliability, hence, three stars."