I've been doing mostly key runs for the past few days. I did a couple on MP1, no keys, a few on MP 2 and got one key, and now I'm doing runs on MP3 and I got one key today. I only do 2 or 3 runs per day, and they take around 20-25 minutes each. The haul for the last few days:
I'm going to run the Act 1 keywarden until I get 6 keys and then I'll run the Act 2 warden.
I just got this today. My current belt is pretty similar in overall quality, but this results in a bit more damage. I also swapped in a different set of bracers to make up for for the loss of life caused by using this. Dropped from the keywarden.
This dropped a couple of days ago. It isn't as good as my current (rare) shoulders. It has some nice mods, but I'd have to lose 4k life and arond 1.5k damage to use these. Also from keywarden.
This is a pretty good helm. I was thinking of using it on my WD or Wiz, but I don't play either much, so I might sell it. I don't like buying items on the AH much, so not sure what good the gold would be.....upgrading gems?
I did a few more key runs (about 7?) and got 4 more keys. The first 6 or so runs were on MP3, but after getting no key a couple of times, I decided to switch it to MP4. I also changed the rune on Wrath of the Berserker from Insanity to Thrive on Chaos so that I could keep Wrath up for the length of the (expectedly longer) elite pack fights (in hindsight, I'm not sure that this really helped at all). The run went well and I got a key from the warden. In total, I got 6 keys from around 15 runs, mostly on MP3, so I feel like the runs were pretty successful. I had planned on only running the Act 1 warden until I got 6 keys, so now it's on to the Act 2 warden.
I also did not get any legendaries from these runs. I got a few drops that were okay and I'll try to sell them on the GAH, but they're not really nice enough to bother screenshotting and uploading.
Edit: In case anyone is wondering, I have 183% mf before stacks and including the mf from MP4, which is +100% mf.
Another edit: I just finished my first Act 2 Key Run at MP3. Nothing worth keeping, but the Dahlgur Oasis is one of my favorite areas, so that's okay. Well, I did keep a pretty lame wand which I hope to sell for a few thousand gold, but I expect that it won't sell for even 2k and I'll end up vendoring it.