Combi bllinds

I'm exploring options for window treatments.. and Combi Blinds (shown in the photo) is one option.

Originally I wanted Cellular Blinds, but the cost of such blinds are prohibitive for someone like me.... so now I'm considering between regular curtains, Venetian Blinds or this Combi Blinds.\

Any recommendations by anyone may be helpful too.. Roller blinds looks a little stiff to me...