It is one of my favorite cities on the planet.
I took a sabbatical in 2000/2001 for six months and backpacked through asia - I spent 2 months in singapore then as well.
The laws and strictness of the place is greatly exaggerated from my perspective -- if your not doing crazy stuff, you have nothing to worry about.
The city is AMAZING -- and is the FUTURE of cities; they have taken massive infrastructure projects to prepare for more than doubling their population by 2020 - and they build massive underground connective malls and walking causeways.
The city has an incredibly high density of plant life (trees and greenery) and it makes an impact when you visit. Many of the buildings have a large setback from roads where they have trees and grass and planters between the buildings and roads. This is really a wonderful civil engineering trait of the place and makes the city much more beautiful than dense urban dirty environments we see in american cities.
In my opinion, if you ever watch much anime -- Singapore is the city that will most closely resemble that which you see in anime.
I love Singapore - the only thing I dont like is how freaking hot/humid it can get.... and the cost of living.