I would say that overall they have taken the NFL game and made it more boring. An example of this is the rule that the entire D line must be in a 3 or 4 point stance. So this means you could never use a rush end. They also have limits on how many people can blitz. It's pretty silly.
The game I saw was boring as hell. I also saw a bit of a recent game where NY moved to a much smaller stadium and hosted Florida. It was only a 15K seat stadium and still looked bare. The crowd was reported to be 4,000 and change but there is no way possible there were that many people. NY played their first home game at giants stadium which holds about 75K and they only drew just over 10K.
Think about this.. The other 3 teams at least play in markets without the NFL but not New York. New York has 2 NFL teams plus they start the UFL during the NFL season. How could they possibly ever think a NY team could ever cope with the competition? The California team seems to play out of San Jose which is close to San Fran and Oakland so thats another bad place for a team. Florida already has 3 NFL teams but playing in Orlando at least provides central Florida with a team since the NFL tems there are all on the coast. LV gets the best attendance at around 14-18K per game which is not surprising as there is no NFL team anywhere near there. Florida is second in attendance with about 11-12K per game. California has gotten between 5-6K per game and NY 4-10K.
The USFL was the only other pro football league ever in the US to get decent attendance. Some teams didn't though but many got 30-40K. I remember LA only getting 7-10K but at the time there were 2 NFL teams in the city. No shock. The main reason though the league saw good attendance was they played from spring till summer when there was no NFL competition. The USFL went under after the 85 season when they announced that in 86 they would start playing in the fall. Interest in the teams rapidly dropped and sponsors backed out just at this announcement before a fall game was ever even played. The league had no choice but to fold. You would think the UFL would have saw that as a great reason to play in the spring.