Plastic or glass??

Well now that I'm quickly approaching my first day back to work I have been trying really hard to build up my milk supply for Brandon. Along with breast feeding pumping has also been a challenge. I was very discouraged in the beginning cause I would barely produce an ounce in one sitting! I tried everything... From a heating pad to even drinking special lactating teas. I would get so discouraged that I would dread even doing it...but knowing that I had to do it for Brandon I kept on and pushed through. I pump every other day now and am averaging about 2.5 ounces a session!!! I've realized that all I needed was to give my body some time to adjust. I've also realized that it helps to do it around the same time every session. Now with that being said... Seeing that Brandon will be feeding out of a bottle soon. I have been thinking more and more about what bottles I should use. I'm currently using the medela cause it's what my pump uses, but I've really been wanting to change directions and start using glass bottles. I've been doing some research and have really liked the lifefactory ones. I've also heard good things about the dr. Browns, but it doesn't have the silicone sleeve like the lifefactory does. Im very clumsy so I think that the silicone sleeves will help!! My good friend is currently using the Dr. Browns and she loves it. I got to try it out on her little one and the only thing that I thought would be a pain would be the weight, but it's something that I can easily get over. I'd rather worry about the weight of the bottle than the chemical leaching from the plastic ones! Oh decisions, decisions... If you or anyone you know uses glass bottles and have reviews about them (good or bad) I would love to hear about it!