I've had this shed for over 30 years.  I mounted it in my side yard on a self-poured simple concrete pad which slightly slopes away from the house.  Yes, there is some rust showing but it is still solid and functional.  I've been very happy with it and actually went to this website to see if they still make the 4' x 10" model (they do but out of stock currently) since I could now use more room. Yes, I do remember that it was a pain to assemble (wear gloves!) but very doable if you are patient and have help.  Since we have relatively wind free winters here in the SF Bay Area,  I didn't even bother with the anchor kit but will get it for the next one.  Having it made in the U.S.A. is a plus for me and, if they are using the same quality materials, you should also get many good years of use out of it.