It may be odd to think that the seats right in front of the stage could be considered "restricted view," but that is often the case. Many venues have an elevated stage, which allows the performers to be seen by the whole audience. However, that often puts the stage right at your eye line. Check with the venue to find out if the stage is elevated, and to what height, before paying a premium for front row seats.
If the stage is at eye level, you'll have to lean back to see all of the show. Many older venues do not have neck support in their seats that make this comfortable. After two hours, you are going to have a severe neck cramp.
Because the front of the stage is right in front of your eyes, you will have a hard time seeing what is going on towards the rear of the stage. You could miss an entire dramatic monologue or a rocking drum solo, depending on the show you're at. Additionally, if something is happening on each side pf the stage at the same time, your field of vision will restrict what you can see. You'll only be able to watch one side at a time.
Rock bands often set up speakers on the edge of the stage, and you will be sitting right by them. Hearing can be damaged at 105 decibels. Information from the American Academy of Family Physicians in 2000 states concerts average between 110 decibels to 120 decibels. While it can be fun to be right up front for your favorite group, it may be a better idea to take care of your hearing.