As per Michael:
1.) More detailed instructions are required beyond "connecting to metamask" so it can be accessible to most.
2.) The browse for files button overlaps the bottom of the file upload box, at least on Brave-MacOS High Sierra
https://imgur.com/a/kx7Jsho
3.) Spinner too big for the box it is in
https://imgur.com/a/cysppm1
4.) Amounts decimals to clarify token number
5.) Change from success to "valid for redemption"
https://imgur.com/a/shjVvgt
As per Michael:
1.) More detailed instructions are required beyond "connecting to metamask" so it can be accessible to most.
2.) The browse for files button overlaps the bottom of the file upload box, at least on Brave-MacOS High Sierra
https://imgur.com/a/kx7Jsho
3.) Spinner too big for the box it is in
https://imgur.com/a/cysppm1
4.) Amounts decimals to clarify token number
5.) Change from success to "valid for redemption"
https://imgur.com/a/shjVvgt