Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Seems to work well - won't know how well until items are removed. :-)

I used it on a recent spark plug install and I guess it will work OK. Well, it was a little messy going on and I didn't have any trouble with the install. But, I really won't know how well it works until I remove the plugs - hopefully, years from now. :-D So, maybe Amazon will still be around by then and I can give an update when that happens. Either it works or it don't - we'll see. :-)