Instruct: Classify Amazon reviews into positive or negative sentiment
Query: So Far So Good

I bought the Micro Inverter for occasional use with my laptop while on the road to avoid the problem of running out of battery power. So far so good, it works pretty well and the complaint of it's fan being noisy which I read from other reviews hasn't really bothered me. It certainly seems a handy tool and can be recommended for anyone with similar needs.