Thanks for all your input. The Nautica Ahoy bags are on sale right now for a really good price (28", 24" and 21" all for $180) via this slickdeals post.

http://slickdeals.net/f/7580332-naut...9#post73483054

I am in the market for luggage for an international trip in March. I want to try to pack in a 21" hard-sided carry-on for the week long trip. I'm not sure I'll get everything to fit so the idea of getting a hard-sided set is appealing to give me a few extra options.

Based on your comments and Amazon reviews, I may wait until something else becomes available. This may not be the best deal yet.