Personaly was looking some compact good airflow matx case too.
You can also check the Metallic Gear NEO MICRO (190 mm x 410 mm x 385 mm) it has a similar design as the two case you mentioned (close up front panel) but i think the airflow not good too and the height is 41cm.
Other one SilverStone SST-LD01B, is an inverted layout design,43cm length, TG front panel so i think the airflow is bad too but idk u can check some review.
Personaly likes the Silverstone PS15, height-length under 40cm, mesh front.
the Thermaltake Versa H18 also similar spec.
i also like the CM NR400 and the upcoming silencio series and both use the same internal design i think. But the height-length is ~41cm, space for AIO on the top and front is nice but useless for me.