I think airship tech isnt bad, if you use it for naval spotting, although i think that germany should probably start with level 1 in comparison to all other countries, as it kind of doesnt make sense to equate their blimps in 1914 to equivalents from other nations.
Spying tech i never appreciated, production technology is meh, industrial tech is just better.
As CP, i rarely invest in ASW past level 1.
Mobility isnt useful for the most part, best use would be for Ottomans/expeditionary force for them from ther nation. Anti aircraft tech also doesnt seem useful, since Ground Attack Aircraft arent widely used. AA could be useful on warships though. Long Range aircraft is mediocre, with its niche uses, (affects Seaplane Tender) and gives you some value, but not a priority tech at all.
One could make the argument that Naval weaponry is not that good, as the combat between capital ships still requires similar amounts of units to pour in, the ratios of units you need to use dont change in a big way. I feel like it gives most value to weaker ships, as they get better results when defending, can finish off capital ships more consistently.
Heavy bombers are the tool to use to beat a weaker economy into submission by the end of the war, which is a problem. CP dont have many such countries left by the time you get it (maybe Italy) and the obvious target for the entente is the Ottomans. So they have their niche, they need some changes.