Yes, a great many of the people on this forum have experience of buying Apple products. My advice would be to buy if you really need it, to wait if you simply want it.
Waiting for the updates and then buying refurb is a pretty good strategy if funds are a bit tight and if you are the sort of person who does not mind not necessarily having the latest/best in technology. Usually, quite good discounts come with refurb models, and additionally, they have been rigorously tested, come with Apple's warranty and it is possible to add Applecare too, for peace of mind.
Cheers and good luck