In my opinion, yes. I don't believe in giving tools a chance to hurt me. But I mainly do more bodywork than mechanical. But I have never had to use an impact swivel, that I recall. Every time a proud new owner of one shows it to me I cringe and just say "Nice!". I am guilty of using a wobble extension before, though. I figure in that situation a long wrench or short socket with bar is the answer. I really don't want to use an impact anywhere it isn't necessary. Where it IS, theres usually room for it. Those electrics are nowhere near as compact as pneumatic, but I don't see techs using air impacts much anymore. Take my advice with a grain of salt, I'm anti-anything with a battery!