I would add the following comments, which I broadly captures beyond 5m. I live in a T3, I balance often a video on the TV for my family, and I often work in another room (Mode: EXTENDED BUREAU) without ever having to see with lag or disconnection. So, after reading some of the problems, I tested in all parts without finding problems, despite a distance of about 8m MAX + plasterboard partition.
I use pro i7 surface 3, not tested with other PC ...
For me this is the best wireless I have seen personally, compared to Chromecast htc media link.