I honestly have a lime green 30X IIS.
I don't bring it to work because it's hard to get work done when all of the ladies keep finding excuses to come to my office.
Not certain it counts, but i've used my TI-30 nearly every day since I bought it and it's been nothing but perfect to me. Little big for a pocket carry, but if you're lugging around a bag it's definitely one of the most useful items I can think of.
I own this one in blue: