Challenge is an awesome site and its always changing and Improving.
Cons:
Can be muddy with prolonged rain
It can seem a little unbalanced attacking from the Forrest but they are working on that to improve as we speak.
Pro's
2 main distinct playing areas separated by a small river with an island between them.
The landscape changes every season, the island is amazing during the summer with the ferns for camo.
A great little fort with a forward base on the other side of the main battle field. The main battle field consists of a base at each end of a 70 to 80 meter (rough guess) open battle field. Plenty of cover but not too much as to make it easy.
Always changing games so never really the same
And the big one for me: they listen to feedback and work from this. The site is aways improving and just keeps getting better and better