I used to own that large-print keyboard.
1 - The letters WILL rub off of the keys you use the most.
2 - It is not the most responsive keyboard ever made. Seriously, there will be times when you KNOW you hit a letter, but nothing will show up on screen. Also, some of the keys feel like they're "tipping" a little bit when pressed. Overall, it has a "mushy" feel to it. If such things matter to you, you may want to take note.
3 - If you keep your eyes open, they turn up at walmart occasionally for less than 10 bucks. That's why I bought one. Well, that and I do admit, for a hot minute I thought the yellow keys looked kind of cool. I got over it.