First, all of these low reviews are based on the fact that people bought Season 1, Volume 1 DVD's of the show - and are now mad that they are releasing a full season on DVD. Here are a couple of points that you should acknowledge before putting up a low rating:
1. They started selling Volume 1 before the entire season was complete. If you think about that for a minute - how were they going to sell a "whole" season DVD if the shows had not even aired yet? How can you be surprised that you would then be faced with a choice at the end of the season between buying the full season in one set or having to buy Volume 2? Other shows have done the same thing, like Battlestar Galatica. Sure, they do it to make money - to hit the market while the shows are hot - but the fault is really the consumer. If we all stopped buying these 1/2 season DVD's, they would stop selling them. You KNOW they are gonna release a full season DVD at the end of the season. Heck, even if a show is cancelled, they still release it on DVD to make extra money. Be patient.
2. Volume 2 is listed here on Amazon for pre-order and they are giving a discount to anyone who bought Volume 1, if they buy the whole season 1. Don't make it sound like you are being forced to buy the whole season now. You have the option of getting Volume 2, or getting the full season at a discount.
As for the show, I love it. The writing and dialoge is well crafted and the characters, though somewhat stylized, are believable. I will admit, that the last couple shows seemed to lose a step and allowed the music to become more important that the storyline - so, hopefully now that the urgent competition is over, the story lines would be allowed to grow. I did like that they have broadened the focus, allowing the supporting cast to do more solo work and shine more in the singing department. The character of Sue is one of the best characters written on any show today.
Now that the first season is out on Blu-ray, I would encourage those who have heard about the show - who may have caught an episode or two - to start at the beginning and enjoy the Glee experience. We finally have a show that combines comedy, drama, musical features, and good writing. Take the chance.