Week 1
hands played: 9589
profit: -$17.13
BR: $286.06
Challenge Progress
Not much to say, I didn't check cashier through the week, and it helped me to focus on decisions not the results :), I think I got around $20 this week from rakeback, also I expect to get some extra cash from party $100K Cash Game Card Rush promo. For those who are curious I can show you my graph from this week:
Spoiler

The hardest thing is learning for me, I watched few videos this week, but there is so much to learn, and applying new things in my game takes time, I think good strategy will be to make notes while watching coaching videos, which I wasn't doing because I was too lazy xD. Today is Sunday, so I will go through the HM2, check opponents, and maybe post the most crazy hands on the forum. I'm also planning to read some poker mindset stuff.
The plan for the next week is to stick to the plan ;), I think I played more time than I spend for learning so I need to work on that.
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@SvenBe you asked how I see the difference in game play on different sites, so I can do a quick comparison. In past I used to play speed poker NL10/NL20 on William Hill Ipoker network, also I have small experience with 888 snap, so let's talk about it.
Software:
Pokerstars - so far the best software, best looking, no issues with HM2. Note making and color coding in software are very good.
PartyPoker - party poker is pretty good alternative, you can customize the look with PartyCaption, or 3rd party themes. Sometimes it's little laggy, and last time there were some issues with HM2 after party did update, usually after they do update you need to wait for HM2 staff to release an HM2 update. So this can be annoying. There is no color coding, you can make notes, but it's not efficient for me. The replayer is laggy, and if you want to see what hand villain had you need to go to HM2 because they won't show you in their replayer.
William Hill (Ipoker) - nice looking software, but there are serious issues with HM2, HUD isn't working when you play more than 1 speed table, HUD is jumping, weird things happen. Color coding works fine, I think I had some issues with note making. Overall the best software for notemaking is HM2.
888 - The HUD isn't working on snap! It was hard to switch from PS to 888, 888 software works good, but looks ugly. for me it's little confusing to navigate through their menus. I think you need to click a lot to make a note or color code.
Player Pool on NL10 ZOOM/FF/SPEED/SNAP:
Pokerstars: morning 300-400 evening 700-800, it's huge and this can be a problem, because if there are so many players you need to play a lot to gather some stats and make use of them, or you can find some friends and exchange database with them but I think that's illegal. I think this player pool is somewhat agressive compared to others. Because of cardmatch promo, they can 3B with any two high cards, and if you don't have stats this can be a problem, possible solution is to check the player's country or how many tables he play and try to make basic assumptions. Other solution is to play morning session :). I think notemaking is crucial to success in this playerpool.
Party Poker: mornings sometimes can be dead, sometimes there are only 15-30 players, evenings 70-120, the best hour to print money is 11PM CET, this player pool is pretty passive/ nitty and you can build up quickly database, so for me it's the best place to play right now.
William Hill: NL10 is pretty much dead the most players are on Nl5 and NL20, but if they make promotion or mission that require NL10 to accomplish this can playerpool is from my experience the most profitable, they are very passive. In my last 10k hands on WH I had 15BB/100, maybe not a big sample but you can make money here for sure.
888: TBH I don't have big experience here with NL10 players, so I won't tell you. :).
Promotions
Pokerstars: cardmatch is pretty sweet, because it attracts fishes to cash tables, and its always nice to get extra rage dollar 
Party Poker: very nice promotions/bonuses, right now they have The $100KCashGameCardRush and I'm in top 30 so expect to get extra $75-100 cash today from this promo.
William Hill: I don't now the current status, but in last months they had some easy missions like win a hand with QQ on NL10 to qualify to 1000 euro shootout, and I've won from one shootout 100 euro, so it was good.
888 Poker: for me the the worst promos, they give you tickets to tournaments you can't find, I think I never get from them cash directly.
Rake?
I did some calculations in January, not many hands but you get the idea:
Spoiler

Rakeback?
I think I have the best rakeback deal on PP, on Pokerstars starcoins are cool, on WH it's pretty hard to get rakeback, on 888 idk.
I hope you guys are not bored, anyways wish me good luck with the challange ;).