John - I actually DID grow Strawberries and Cherry Tomatoes (as ornamentals) in my 3-tiered bed the first year after I built it. The tomatoes didn't do too well. But the strawberries did pretty good. I made the mistake of growing trailing strawberries and they got out of hand. LOL!
I have daylilies in mine now and some other butterfly and hummingbird nectar plants and I am interested to see how it will look in bloom this year!
2 years ago I grew poppies, dill, and all kinds of butterfly plants in it. Here is a photo from that year.