Bike Forums - Saddle Comparable to Specialized Romin Mirror?

Okay, I've been off saddle for few years and got back to it few months ago. Specialized power which worked great for me no longer is the magical saddle with my lower power output. So I went out on new saddle hunt and came upon Specialized Romin Mirror which is.... just amazing. No numbness, no real sit bone hurt after 4 hours on saddle, and I kind of forgot about saddle on last few rides. While it is happy ending for that bike (or beginning)...
I have another bike (dedicated indoor trainer bike). While a solution I came up with recently is quite decent (I can do 1.5 hours no problem now....), I probably am looking at occasional 3 hours on trainer as my training volume is increasing. While I already have good idea of how to improve it... (get another $450 saddle...), I just can't seem to bring myself to do that. Is anyone aware of decent alternative?
Are those Fizik Antares Adaptive equivalent to Specialized in comfort?
Thanks in advance!