When I did the OSWP exam some years back my SSH sessions kept dropping, but perhaps because I had a two or more concurrent sessions and I think there was some latency in my connection. I think "doing" the attacks isn't what consumes time, but rather the documentation. One of the most fun exams I've ever taken though with that thrill-of-the-hunt.
I got a copy of the updated course when it was released, but I haven't gone through it yet. That said, I'm of the impression there's no coverage on 802.1X attacks. I would really welcome that since it'd make the course much more applicable to enterprise networks.
GSEC, GCFW, GCIA, GCIH, GWAPT, GAWN, GPEN, OSWP, WCNA, CCNA, CCNA Security, SFCP, SnortCP, and more useless acronyms.
Hopefully-useful stuff I've written: http://kimiushida.com/bitsandpieces/articles/