LGS Wins Added to Arena:
It's great that wins gotten in a real life event (at your LGS) are now added to Arena.
However, the wins are applied at the moment you log in, rather than when you played in the event.
Last week I played in a prerelease for the new Lorwyn set, and it's great that I got the wins on Arena. But I didn't log into Arena until the next day. Thus the wins were applied not on a day where I didn't play Arena (the day I went to my LGS and played in the prerelease), which would have been extremely helpful, but they were applied the next day when I was not going to go to a store and wanted to play on Arena. However, having your first six daily wins taken from you as soon as you log in is extremely demoralizing. The most important game wins are the first four, as they all grant gold, and the most gold. After that, it's two wins per 50 gold, and worse after ten wins.

To sum up, applying the wins to the day you log in both takes away something that could have been useful (Arena wins on a day you went to your LGS), and does a disservice on the day you do log in in that it removes impetus to play.

My suggestion is that the wins be applied on the day/at the time you register the wins.

If the Arena devs are reading this, I was the guy who suggested on Twitch that we be allowed to look at our hands while we wait for opponents to decide to mulligan or keep. Thank you for implementing that change, as most suggestions are ignored by other online game devs.