Instruct: Classify Amazon reviews into positive or negative sentiment
Query: OK up to a point

Worked fine with an electric shaver and with a curling iron, but with a hair dryer the fan motor just growled and turned slowly. The prongs on the base unit wouldn't reach into a grounded 220V receptacle (which is recessed). It could be made to work by plugging the converter into one of the (included) adapter plugs, but it needed to be plugged in only part way, since the prongs on the converter are metal only at the tips. This required some careful one-handed juggling while shaving with the other hand.