Your preferences are strange to me. I don't think the Kazaar. I find it too robusta-y. Ristretto isn't nearly as strong and while it does have some robusta in it it isn't overpowering like Kazaar. Dharkan I like. I tried the Cubania, but again too much robusta, imo.
Bios, why didn't you get the Pixie? It is a better machine. Doesn't need descaling as much and it is more energy efficient.