I would be lying to you if I said I knew anything about Lemon pre-draft. But after he signed with the Texans as a UDFA I did a little studying, and I am really hopeful that he finds a spot on this team.
Some raw stats
4.59 40 yard, 32" vert, 7 reps, 6'1", and 202 lbs.
Nothing very impressive here. However everything you read about this guy is good. In High School set state records and also volunteered at school through a mentor-ship program. In college he produced better each year. Culminating to a 1000 yard senior season, with 73 receptions, and 7 touchdowns.
He is by no means flashy but seems to me to very much like another Kevin Walter. Everything says he works hard, has good character, and runs his routes extremely well. I think he could be a great locker room guy, and on the field I believe he could be a solid possession guy.