I recently purchased this bottle at a local health food store to replace my heavy glass bottles that I use for drinking water. Three negatives I've found with this bottle:

1) I've heard that stainless steel is as light as plastic but I haven't found this to be the case. Stainless is safer than glass where breakage is concerned but not lighter when filled with liquid.

2) The cap on the bottle is made of plastic and the inside threads of the bottle are stainless. Needless to say, they don't fit well together and so it leaks.

3) The cap has a carabiner attached which makes it awkward to turn. It would be much easier if the carabiner and ring were attached to the bottle rather than the cap.

Although stainless steel is an excellent alternative to plastic and safer than glass, I'm going to return this bottle and look for a different design. 3 stars

Unfortunately the color coating of the bottle peels off within days! I would not buy this product again. Also they don't come packaged; they come in an opened box and it made me wonder if it was actually used. 1 star

I loved this water bottle when I first got it and I used it all the time. I was able to put it in my bag and I never worried about it leaking. However, after just three months of constant use, the bottle began to fall apart. The blue paint began to wear away, the cap no longer screws on (the stainless steel wore away a lot of the plastic), and the clip on the top of the bottle broke. If you need a leak-proof bottle that holds up with constant use, this is not the one for you. 1 star

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. 1 star

I love this one-piece bottle, especially for camping. It is durable, holds more fluid than many other bottles and it comes in several colors so each camper can have their own color and not have to write names. The only way I'd want to improve on the bottle is to have a clip attached to it so you could carry it more easily. It is water tight and can fit in packs very well. The first few times using this be prepared for a very matallic taste but that does disappear. 4 stars