There are definitely lots of positive qualities to Chez Sven: the quiet location up a dirt road off of Route 6, only a few minutes' drive from Wellfleet Center; the lovely gardens surrounding the house; and the pleasant proprietors, Sandy and Sven, who (as Sandy said) give people lots of space and privacy. All of that makes for a very relaxed setting.
That said -- and we say this with some reluctance -- we were much less enthused about our stay at Chez Sven than others who've reviewed the B&B on Trip Advisor. It didn't help that Sandy was very much under the weather during our visit and that, as a result, the "wholesome breakfast" that we'd been looking forward to sampling (based on other reviewers' comments, as well as the description on the B&B Web site) wasn't part of our stay (except for the homemade yogurt).
But even apart from that, the B&B was much less of a value than other B&Bs we've visited on Cape Cod. While we understand the charm and coziness that some people find in well-worn furnishings (e.g., the well-worn rug in our room, the Green Room) or cluttered common spaces (e.g., the very much lived-in kitchen or the small sitting area off of it), these qualities came as a surprise to us, given the impression presented on the B&B Web site and (again) the comments of other reviewers. In the end, while we still managed to enjoy our stay, it left us feeling that we paid somewhat more for our visit than was warranted.
If you're looking for a relaxed getaway in a rustic setting where you can stay with some very nice and interesting people, then Chez Sven is worth considering as an off-the-beaten path option in Wellfleet.