Rune,
I have used the CellPro 10xp for a long time and they really do work great. No issues noted out of mine what so ever. Over the past year I have been using the Icharger 4010 with great results. I have been very happy with this charger. It allows me to charge 2 10s packs on 1 charger as well as use the discharge and cycle feature that they have. Out of the two chargers if I were to purchase 2 Cellpro's or 1 4010 I would say go with the 4010.
Andrew