It is different from the US, but I'd say it's more similar to the US than the UK is to the US (if that makes sense). The thing is that the US is so diverse because of how expansive it is that I can only really speak to the region I've lived in. There are no mountains or sea where I live in the US though, so there's that...
Culture wise what strikes me the most is how family-oriented the people I've met in Slovenia are. Much more interested in taking care of their family, providing a home, good food, and living life (vacations, barbecues, etc...) than on trying to "get ahead" on the financial ladder. Although that may be not in small part due to the economy and job prospects in Slovenia, because "getting ahead" isn't really a thing no matter how smart or skilled you are.
I guess it's just a simpler, more straight-forward way of being and that's really what I'm looking for. Of course, I can only really compare it to my own personal experiences in other countries too and it may not be what other people who live in the US would think. ^^