I have tried tons of lip glosses from MAC lipglasses, MAC lip varnish, Mineral Lip Glosses, Burt's Bees Lip Gloss, to lip glosses from drugstore brands like Loreal, Maybelline, and Revlon but these are the ones that I LOVE best.
I love the packaging and I find the item design practical and hygienic as opposed to the conventional lip gloss with the applicator attached to the cap. These lip glazes are also not as sticky and thick as MAC lip glosses which is another plus point for me. Of the four mini lip glazes that I have (part of the Lip Glaze Holiday Collection), I love cranberry (fourth from the top) and plum fairy (second from the top) the most. The full size lip glaze (Ultimate Pink), on the other hand, was the one that was part of the Ulti Mate Set that I purchased last year. I'm having no regrets purchasing these and would probably buy more in the future once I use up or dispose my other lip glosses from other brands. The packaging of the lip glazes reveals that shelf life is "12 months" so while I'd want to hoard many of these at one time, it would not be practical.
When I was roaming around the local HBC store, I noticed that this local brand also has something similar to the Stila Lip Glazes, down to the packaging and brush applicators. You might want to try them if you don't want to splurge on Stila.
P.S. As a certified Gleek, I was pleased when I saw "Rachel Berry" using this in one of the episodes of Season One. Yey to Stila Lip Glaze!