In Tesco Extra in Bangor N Wales and it just works
Except it doesn't work with the Opera browser, OK with Firefox and IE
Achieved 650 Kb/s download and 1.1 Mb/s upload, ten mins later 900 Kb/s download, 1.7 Mb/s upload. Obviously spped depends on how many users are on.
Connected to BBC I player, but quite slow at 380 Kb/s but if you've gone shopping or having an extended break then you could download at least part of your programme!!
This at midday using an extender from the van, the signal to the laptop was quite poor.
There's a MacD down the road as well.
Verdict: better than nothing, it's free and great for getting e.mails and some browsing.