With the stihl powerheads we were running,switching to a chainsaw was not an option,no way would a 20" stump take 2-3 hours ime. No maple here really but I couldn't imagine taking that long,im more aggressive with it than that. Its far more versatile than any other grinder and is rather qwik too,depending on the operator apparently 😆😆 it's by no means a production tool but has it's very own niche application.just sayin,where i worked before for 8 years we ran em regularly that entire time...