I'm not quite as negative as the above poster, but ... pretty much yes.
Only the four "destroids" - in our terms Warhammer & Rifleman pack, and Archer & Longbow pack, are well sized. The Valkyries & Glaugs are way too big.
And they are, indeed, a fiddly mess. Two part SRM pack on the Warhammer? WHY???!? (And yes I do know why, and it's sad.)
I'd not try them unless you've assembled plastic airplane or tank kits in the past. Plus seams show after you glue them together.