On the one hand, its a good price for those models (its less than a third of the price of those kits). If they're in good condition, of course.
On the other hand... right now (this could change in two months or less), none of those units are great choices. Tesla immortals are better, and warriors and lychguard with warscythes aren't really worth putting on the table.
I'm picking this up essentially to form the base and paint test for my eventual half of the new starter box.
Its complete overkill for a paint test. A handful of warriors will do that job, and are probably available for peanuts.
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On the other hand, given the absurd cost for characters, it rivals
GW's price just for the overlord, lord and crypteks. And you'll probably use at least two of those. Well, maybe. A cryptek at least.
But with the new book & edition, a command barge, destroyer lord, and/or Skorpekh lord may all be better choices than foot overlord or lord. In fact, that wouldn't be surprising at all.
Really, its a good deal only if you consider real currency values vs the price of
GW kits. Its huge discount vs the retail price, but none of those things would be at the top of my list to actually include in an army. It's much less of a good deal if its all going to sit on a shelf.