I am very happy with my new Echo Mia card. The AD/DA's are AKM chips. It does 24/96 via coax I/O. After making 1/4" to RCA cables. I can deffinitely hear quite a difference over my old 16/48 card. I highly recommend it if your in the market.
I've been using a Gina for 2+ years and it has been great as well. Great customer service at Echo too. When I had a problem with my S/PDIF input well after the warranty period, they were very responsive and fixed it for free.