I'm probably the only one who feels this way, but I really liked Ko'olau Golds on my Dolphin. I have Aquilas on now and I like them better than I did the first time I had them, so as my playing has improved I may get different results from the strings. I plan to try the Golds again and see if I still like them... or if I was simply entranced by the pretty yellow strings on my pretty blue Dolphin. Also I plan to try Living Water strings.
I did NOT like the Ko'olau Alohis on my Dolphin. Not at all. They are probably nice for a different 'uke.
There have been a few threads on exactly this topic (I know because I started one of them) so you might want to dig around a little. You are likely to find at least one opinion on every type of string on the Makala Dolphin! Especially from those of us with String Aquisition Syndrome. Have fun!