That is a great charger but remember that it is DC only and you will need a psu. SMC Racing sells one that's supposed to be pretty good.Batteries and Chargers have been touched on quite a bit recently. I like my 6S 5400mAh from SMC. I'd suggest a charger that can do atleast 100Watts. I'd look for 200watts or higher.
If i knew i'd be charging 6S batteries when i started, i would have gone with a solution like this:
There are a lot of options; the above would make me jealous.