Not as good as rest of first year!
You meet a lot of people, get lost countless times, try and settle into a flat/room, miss home a little, are intensely sleep deprived, party hard with strangers you don't care about.
During rest of year you have fun with people you know and like, balance partying and rest of life, get to learn stuff (if you're going to uni for a degree you love, you'll enjoy this), you're flat/room will feel more like home than home itself, you'll hate the holidays and want to be back at uni straight away!