Instructions were clear enough, though lengthy and often redundant. I disassembled my phone, replaced the battery, and closed it up in about two hours (first-timer).
For the love of God, iFixit, you need to do a much better job linking videos for procedures like replacing screen adhesive in your instructions. I eventually found one for applying the adhesive, but it was still little confusing so I looked at your YouTube video. That video, is no longer even relevant because the procedure shown in the video does not match with the current adhesive kit you see. Or, at least, sure doesn't look the same.
Anyway, I encourage anybody trying this to purchase and extra screen adhesive or two. you'll probably need them.
Thank you for the 'warning' and reminder to be careful removing the back plate as to not damage the wiring. This is confusing because it looks as if the only spot you need to really be careful is on the left-hand side where the volume and power buttons are.