Strengths: Grip - lots & lots of grip - so inspiring. Not too heavy, and pretty durable for tyres described as "extreme condition". I've had them for 4 months now, and used them very extensively, on long rides & short blasts, in all kinds of conditions. No signs of wear yet. At the price, I haven't come across anything better.
Weaknesses: Can't think of any, if you're looking for a solid, all round tyre and don't mind that they're not skinny whippet racing tyres.
Overall: Excellent - huge grip, great price, superb value.
Strengths: Same comments as Steve Smith - plus they look great! Love the Launch Control feature. It's early days yet, but they are already super smooth.
Weaknesses: None yet, but still bedding in.
Overall: Excellent - although the price quoted above is wrong - the rrp is £439 - even at that, I think they are better value than Fox.
Strengths: Fit (sooo much better than the Altura's), price, style...and the liner is fully detachable, and Endura will soon be offering spare / replacement liners for £19.99. They will also be doing a spare for the MT500 version that will fit the Humvee - so you'll be able to "upgrade" the shorts...
Weaknesses: None yet.
Overall: Best baggy shorts I've ever had and that includes Altura, Ground Effect, Orange etc, etc. Endura score again!