First off - the link doesn't work....
What do you need to charge? If you need to charge 6S lipos versus 2S or just NiMH batts makes a big diff in the charger you would be looking at.
To me what makes a good charger is one that is flexible in charging all the chemistries (Lipo, Li ion, Pb, NiMh and NiCd), easy to use (intiutive menu setup - something you don't absolutely have to have a manual for) and thats built well enough electrically and mechanically that it will give good service for a long time and numerous charge cycles.