For me not many spot to do them to start and they seem  more for new type of toon the fly around and toss stuff much hard for toon that are more station area and fight like valks and shai

270 ap spot - good alternative for orc camp,  i would say even better than orc camp.
310 ap spot - dead on arrival and still dead today.

I didn't mind them but I think they need to add to the drops.  I think those crystals are going to be useless/unsellable in no time.

Drops did get improved (in the form of the Faint Origin of Dark Hunger). However this drop rapidly hit min price (at least on NA). Thus, while the spots are improved, more drops should be added.

The lower one is good, the higher AP/DP one where the boss spawns is annoying as heck wiith the red circles constantly spawning underneath. My wrist was crying and my arm was aching in just 15 mins of that.