I've been skiing Peak 6 at Breck for the past few days, and I agree it is an excellent expansion for advanced-expert skiers. This opens up some very nice lift-served and hike-to-terrain. The lift has been open since Christmas, and they opened-up the hike-to-terrain starting on Thursday and almost all of it is now open (although several lines are not skiable until they get more snow).
However, rating and marketing this terrain expansion as something for intermediate level skiers is a huge mistake in my opinion. The fact that they rate two main paths down from the lift as blue makes zero sense in regards as to how Breck rates the the rest of the trails on the mountain. Yes, they do groom the main blues, and I agree that below treeline, the blue rating makes sense, but the top 1/3 of the runs above treeline ski more like black and are going to get a lot of run-of-the-mill-stereotypical low intermediate Breck skiers in trouble. Its going to look rediculous up there during some of those infamous spring break tourist weeks. They ski like Peak 10, which is black, and in reality Breck still needs that Blue-Black rating they need away with a few years ago, which would be the most appropriate rating for these runs.
Skiers right off the chair is the main groomer down, Bliss and has the best snow as it gets wind-loaded the most. Skiers left off the chair has another groomer that goes down the ridgeline, Reviere, but right now is heavily wind scoured and littered with rocks and grass coming through. (Again a poor choice of a run for an intermediate). The whole area between these runs under the chair looks like it will be very nice to ski on powder days and its wide open and a fairly moderate pitch. Once in the trees, these are some fun cruiser blues that eventually flatten-out to a run-out back to the chair.
Intuition and the lower 2/3s of Bergman Bowl (north side/skiers left of the chair) can be reached through gates at the top of the chair. This is a very fun area, good sustained pitches, a little bit like a less-wind affected Horsebowl or the lower part of Peak 7 Bowl. This catches some nice wind-loaded snow, so its nice and soft even without snow in 10+ days. It abuptly ends and the traverse out, and for whatever reason the ropeline is a little bit below the traverse out on the right, and there were several people (mostly snowboarders who lack the ability to skate/slidestep) hiking out and back uphill to the catwalk out.
The hike-to terrain is $$$. Not a whole lot different than the hike to the summit of Peak 8 off of Imperial Chair, its about 10 minute boot-pack up to the summit. Skiers left / north side is Beyond Bowl, which has some nice turns off the top that go all the way down into the bowl. Some of the lines here aren't skiable yet as they are too rocky until they get some more snow but a nice little cornice on top to go in and drop some nice sustained vertical. Skiers right / south toward Peak 6.5 is pretty sweet. The Sixth Sense area has some nice chutes, similar almost to Lake Chutes, but I think more vertical that drop down. They seem to be holding some nice snow in there too.
Overall some nice above treeline terrain additions, that compliment the rest of the stuff on Peak 7 & 8 well. Don't kid yourself, the benefit of Peak 6 is more advanced-expert terrain, its not the intermediate terrain.