I would definitely suggest making sure your run can fit YOU into it. What would be the use of keeping pets which you cannot be with?
Many folks here also install cup holders inside their coop/runs, and hang a clean folding chair in there. I have a little milking 3legged stool to sit with them, and sometimes bring my knitting. Its nice in there. My youngest son can be found sitting with them, reading to them, when we can't find him anywhere else.
Yes, I'd make sure your run is easy for you to walk in, maneuver your poopscooper in, clean in. Even if its a tractor.
In this video, my hen jumped into my lap for a visit. Neither of us are very pretty, but its a good example of what sometimes happens when chicken's personalities come to light:
http://www.youtube.com/user/6chickensinstcharles
I hope your setup affords you space and time to relax and enjoy your birdies.
Here's a picture of my current hoop and coop:
After 3 years of trying many different ways, this is how it is today. I'm sure it will continue to morph. I hope yours STARTS better than mine did!