Is there a specific reason you're not looking at clipless? Price wise, they are more expensive, but you can get entry-level clipless pedals, like Shimano PDs, for about double the price of what you're looking at now. And with them, you'd have something that can "grow" with your ability. Start off with the tension a bit on the loose side and tinker with it as you get more comfortable.
I rode with toe-clips for my first year after getting back into cycling several years ago and, while they do generally work as you'd expect, to me the big issue is if you have the straps as tight as they need to be to prevent a lot of float in the peddle, your toes get numb after long rides. With clipless, that's not an issue, obviously.