Instruct: Classify Amazon reviews into positive or negative sentiment
Query: okay, but...

I bought three of these bottles because they were inexpensive and looked cool, and it seemed like a good idea to stop using the disposable plastic water bottles.But they seem cheap. The bright colored paint started to peel off after a couple weeks. I did not get a response from the company when I emailed a request for information about lead in the paint.After a few hours in the bottle, the water started to have a metallic taste.But they did get me accustomed to the idea of carrying around my own water bottle, so I did a little more research and bought the more expensive ones by Sigg. The Sigg aluminum bottles have a flexible ceramic coating on the inside, so there is no metallic taste, even after several days.So, while the Enviro bottles are cheap and seem okay for limited use, I highly recommend spending a bit more and buying the much better quality Sigg bottle.