Stayed at Whiffletree with a group. The location of the unit is fantastic. Very close to everything and the shuttle pick up extremely convenient. We had a three bedroom two bath condo, not fancy but served its purpose for our group. Was nice having a unit with tv's in all rooms and a computer for our use.

It was very difficult to find good information about Whiffletree when I was looking for a place.
Allow me to help future travelers with some quick pointers:
Location:
-- Everything worth seeing in Killington is right on Killington road. Whiffletree is about a 5 min shuttle ride down the base lodge - and about the same distance to the Wobbly Barn and the Pickle Barrel (must sees for night life). The shuttle picks you up right outside the place for free. There's a ski home trail that leaves you about 300 ft from the resort. The bars pick you up for free at night, and a ride back home in a cab is $4 per person.
With all this in mind - there's no reason to spend 25-50% just for location. The shuttle was very convenient and if you really wanted to you could just drive the 5 mins.

Cleanliness:
I was VERY concerned about this reading other reviews - but I have to say the other reviews were off base here. My unit was tidy and functional. The rugs outside the unit are exactly what you'd expect for a ski resort with people walking on them with Ski boots, but seriously nothing to get worked up over.

Size:
We had a 3 bedroom condo in building D. The bedrooms and kitchen were more than large enough. The living room was on the smaller side (could only fit 2 people on each couch, the other 2 people would have to pull up chairs). The unit could accomodate 6 people comfortably, 8 if you squeezed a bit.

Amenities:
The fireplace is gas (a bit of a bummer as I was looking for a wood fireplace) but it gives off plenty of heat. The unit had a TV in the living room and master bedroom. Stove and oven worked fine. You're not paying for a SPA here and you're not getting one either.

Other notes about Killington:
Baja Burritto is right down the road and has ridiculous deals from 3-6. Half prices burrittos and appetizers. The Pickle Barrell night club is a great time and there was a great crowd there on a Friday night.

We went up with four Couples from thursday night untill sunday,I had been Wary after reading the previous reviews,Am a person who wants to be handled the right way.But was totally blown away.The place is a great deal!.It was Clean and very well managed.We were not an easy group to please from the very beginning.We did a late night check in,everything was ready and waiting for us!.They were very accommodating, when we had a question concerning the wifi they sent someone over! (thank you Kent!).They even Worked out a later check out time for us when one of us got sick and couldn't Snowboard on our last Day Sunday! (props to Carroll).Very Satisfied overall.Not a 5 star resort,but worth every penny!

Just returned from staying at the Whiffletree Condos over MLK weekend, and I would not recommend this place. Yes, the location was great. We could ski down to the condo for lunch, then grab the bus back to the lodge after, but location is all this place has going for it. I would compare it to a cheap hotel. The beds weren't comfortable, the bed frame was broken, I didn't get one good nights sleep the three nights we were there. The biggest issue was cleanliness! Upon our arrival we discovered broken glass on the floor of one of the bedrooms, there were ping pong ball strewn about the place (beer pong I'm sure from the previous renters), gum stuck to one of the mirror frames, old toothpaste, deodorant, and bar soap in the bathrooms, cigarette butts and trash on the balcony; whoever is responsible for housecleaning should be fired! If locations is all you're concerned with, then yes, stay here, but if you're looking for an all around great weekend, look elsewhere.