I totally like the new dynamis system being free after 1 time fee, able to do once every day and it's only 2 hrs max (3.5 hrs before was too long imo). It is a lot more casual and more controllable by the player.
The thing I believe that is wrong with Dynamis is the drop rate on currency. Granted the proc system does enhance drop rates considerably, having no proc to result in 0 currency dropping about 95% of the time is quiet discouraging. I do dynamis 1-2 times a week with my LS (in a group of 6 or so) and we farm currency to help with my relic dagger. On average, we get about 50-80 singles in a whole run and we are lucky if we get any 100 pieces from NMs (before in old school dynamis, we'd get 100-200 singles and 1-3 100 pieces on average).
I believe that the proc shouldn't be required but it should be beneficial to the currency drop. I believe it would be fair if every mob always dropped 1 single currency without a proc and if you do proc, you get at least 2 currency up to 4 (TH will affect this as well). As with the 100 pieces off NMs (which i estimate to be around 5%), drop rate should be raised as well (make it around 15%-20% or so). Also would be nice to see Relic costs go down by at least half to make up for the lack of currency circulating (prices have doubled).
Just my 2 cents but I will say Dynamis is a lot better than what it used to be overall. Any input is welcome.