Anybody playing the new expansion yet (or have played enough)? It looks like it's getting good reviews, and I'm considering (in the time left) whether towards sinking pennies into getting the whole lot (which is a fair lump nearly £60, even with the sale on the first) or whether to just wait for the expansion to go on sale later. Recommendations?

(For the record, I waited to get X-Com 1 until after the expansion was long out.)