I bloody love them for dropping sump plugs oily hands no more
I can't remember the last time I undone a sump plug, I use an air powered vacuum extractor. I've read loads of stuff saying you don't get it all out but the reality is most sumps are thin steel with a threaded boss that sits proud so you can actually get more out with an extractor and even the the aluminium sumps have a raised boss. I was of a similar opinion when I got my first one so I pulled the plug to check and not a drip came out. With modern oils like 5W30 you can do you whole job in a few minutes without getting dirty assuming the oil filter is easy to access.