There's no doubt this new model is stunning. Even if you don't like the look of it you still have to admit that it is very creative. The CPU and GPUs are all connected thermally to the middle piece of aluminum that acts as one big heat sink for the entire unit. The specs are pretty amazing too, Apple claim that it can edit 4k video and render effects in the background with no performance degradation thanks to its available 12 cores.
But with the new design they had to drop a lot of typical computer parts. There is no optical drive and the storage is flash based. There is no room for expansion via PCI cards or new hard drive so you'd better be sure to buy the system you want that will be able to fit your needs for the long run because you can't just pop in a new hard drive more ram and a new video card.
Since Steve Jobs died the company has taken a drastic turn. I'm not sure that they will be able to continue what he started, but time will tell. I'm hoping so.