I was born and spent childhood in Italy, I have gone to lots of other European countries and if I was to compare Switzerland (or at least around Lausanne) with the rest of Europe I would say it's amazingly pretty, breathtaking even but extremely dull.
As soon as the amazement wears off there is not much to do here in terms of entertainment beside the mountains and ski season.
I don't know what it is but somehow it has no real vibe and Lausanne seems to shut at 10pm. Everything is so ordered and controlled with rules that spontaneity it's not easy to find. I am sure you went thru the complaint corner to find lots of them at that was also my breaking point, if I can't click with the place and complain, why stay if life is better at home.
I have to say, the money is a good appeal here but that somehow doesn't buy happiness. Sure, you can fly everywhere, jump on a train and be in Paris or Milan, drive to France or Germany but if all I am doing is escaping Switzerland on the free time I have no much purpose living here.
But I am also sure if you ask most Swiss they don't feel much European themselves, there must be a reason why even bilateral agreement with EU were not put in place till recently... it is a small country surrounded by Europe.
I also find attitude here also very selfish (my opinion) compared with Australia. I notice that everyday, whether it's people just bumping into you while walking or people just stopping without thinking someone is behind them.
I guess I am used to Sydney being more fast paced... and sometimes I just want to go to the supermarket and be in and out in 5 minutes without having to wait and wait because it takes them hours to put two items in a shopping bag
also, I have found people very insular here, we have the basic conversation but I found bonding pretty hard with no expats.
Again, I am spoiled with Sydney where I can walk to most locals on my own, grab a beer and start a conversation with a stranger. I have tried the same trick here and unless they are foreigners doesn't work and I speak French fluently too.
I don't know if Zurich is more open being a bigger city, but Lausanne at the end has just over 120.000 people...
hope it helps...