I have a SX1030B, the variant with the 300W PSU. You probaby looked up the specs already, otherwise they can be found
here. Here's my 2c worth:
Highs:
PSU has good reputation, 3-year warranty
side door makes it easy to get into
direct cooling of hard drives if you put an 80mm fan in the HDD bay
modular HDD bays are easy to work with
rails are kept in an internal holder
swing-out feet for stability on carpet
comes with a couple of fans
very sturdy
lots of room between the top of the motherboard and the bottom of the power supply
the bezel is not very restrictive to airflow, so it will cool well even with rear fans alone
Lows:
quite heavy
the door covering the exposed bays can be a nuisance, and it looks a bit klunky with it removed
no front USB outlets, unlike Antec's PerformancePlus version