To me, the Gustto looks a bit like a squishy version of the YSL Muse and the 1st Kooba you showed looks like a bit like they're trying to copy the Jimmy Choo Ramona! Maybe it's just me...
Honestly, I'm not big on either! However, if I had to pick one - I'd go for the Gustto. It definitely doesn't look cheap. The Kooba does with the patent.