So many differing tastes when it comes to steak...Deb and I prefer 134 for 2 hours or so.
129 will definitely be RARE, but I'm sure you know that.
We love our Anova for steaks, chops, and chicken breasts. The taste and texture is always predictable - always just right.
There are a couple of websites that are huge resources for sous vide cooking...I just can't recall right now. I have "sometimers".
You're gonna love sous vide.
just sayin'...