Miga has great fresh food, from the (new) sushi bar to the steaks. The dream roll, volcano roll, and Mexican rolls were all great. But the nigiri were probably their best asset as they were incredibly fresh and juicy (tried several from the sushi deluxe). The tuna rolls and bi bim bap were excellent as well. But my personal favorite was the Hwe Dup Bop, which is a bowl of sashimi, vegetables, and rice mixed together. Not a huge fan of the doughnut holes or the mochi ice cream balls (though I'm not a fan of mochi in general) so I probably won't be ordering dessert there again, which is fine because everything else really fills you up.
The ambiance is pretty trendy and upscale for champaign, which may be good or bad depending on what you prefer. If you do go, make sure to come with money. But I'd say it's absolutely worth it.