Their modern subs and the u boats are quite nice. As mentioned
above, take care when assembling the hull halves on their modern
subs.
Their Type VIIa uboat has of errors. If building this kit, you will have to modify
the rudder system from a double rudder to a single rudder and reconfigure the air vents
because HB got it wrong.
From the photos I have seen of the Riich Gatos, their kits are very nice.
Cheers,