We got this swing for my wee one's 2nd birthday after a bit of research. The company who makes is called TP and they mak loads of stuff. The swing itself didn't take long to construct and for a bit of extra safety I got cemented it, although I don't think it needed it. Even taking it out of the box you knew it was quality. It's a wooden swing and all the wood is pre-treated so you don't have to do anything. Once up it feels solid and it looks like it'll be there for years!
The swing seat itself is the basic one which is probably good for 3+, for younger than that I suggest the 'Quad Pod' that fits and has four different styles for different ages. All in all though a good buy and one that gets used most days, good ROI ;-)