I know there were some positive things about the late-90s, and any past era really, but when middle-aged people reflect back on their teens and 20s, most do tend to see it through rose-tinted glasses. Most people have happy memories of a time when they were young and had fewer responsibilities.
I was born in 1990 and although my childhood was relatively happy, there were some quite depressing aspects of the 90s. Divorce skyrocketed in the UK in the 80s and 90s, the divorce rate was higher than it is now. My parents divorced in the mid-90s and so did nearly all of my childhood friends' parents. Most of my friends either had absent fathers or a beloved dad they only got to visit every other weekend.
Everyone was more openly racist and homophobic. When an Indian family ran a newsagent, everyone would call it the p-word shop. And that was in the south east, where there's less racial tension than the big cities.
Cars were crap and would get stolen more easily. Everyone smoked everywhere. Consumerism was through the roof - it was constantly about upgrading your home electronics and appliances. Everyone had to have the latest VHS, camcorder, games console, hi-fi system, etc. There were lots of burglaries, lots of expensive consumer electronics to steal.
No-one recycled anything and there was even more plastic tat than there is now.
The list goes on... I don't mean to be negative but wanted to add some balance to some of the rose-tinted memories.