I have an iEQ45 which works beautiful. Currently they have some funny things with the firmware (multi-star alignment behaves not constantly, although the single star alignment works fine)..
In the other hand, iOptron has a new mounts, available mid-january 2014, the CEM60. It can hold 60 lbs (~27kg) with the mount weighing only ~12.3kg. More details see
https://www.ioptron.com/index.cfm?se...e-4ac258e06786. If I was in for a new mount I would seriously consider this that one.
cheers,
Bram