We have exactly 2 years between ours (to with a fortnight) they are 6 (DS) and 4(DD) now, we have survived perfectly well, as have most of my ante-natal class who did the same.
Pluses:
They are close enough in age to share a lot of interests and not be too far apart developmentally now, ie they tend to like going to the same places and doing the same things.
DS cannot remember life before DD came along and adjusted pretty well.
Will DS walk in reins while you push a pushchair with one hand?
You get another maternity leave (if you have gone back to work) at a brilliant time to have fun and enjoy your 2-year old, I think DS benefitted hugely from this
Minuses:
You will probably have two in nappies for a while, might need 2 cots, 2 2nd stage car seats etc.
You have a spell when the older is still tantrummy/unable to fully articulate emotions etc while you are with a newborn. 2 year olds are often quite rigid about their routines and it is hard BF on demand, getting out of the house between all the various feeds and meals etc.
You have to make sure you never leave them alone together in the early days, eg to go to the loo, I used to take DD with me and put her on the bath mat, or if she was asleep, get DS to come with me and play with bathtoys etc
I think on the whole it is a very good age gap, it is quite hard early on, but I think different age gaps bring different problems. If I had my time again I wouldn't do it differently.