Now, a fuller response:
I happen to think that, overall, Birchbox has provided me with a quality experience. I do feel that they need to standardize the CS experience, but as someone who works in customer service, I also know that there may be metrics at play that are impacting the different experiences people have (for example, it is possible that there is a cap on how many free points a given rep is allowed to give out per month, etc.) Points are a nice perk, but are not my deciding factor (many of the things in the BB shop are things that I have found elsewhere cheaper or that I don't have an overwhelming urge to purchase) since I have generally used my points to buy either special edition boxes or gift subscriptions for other people. Hell, regarding the CS experience, I actually think that they may be moving towards standardizing, rather than them attempting to curry favor with individual customers.
Even the absolute crappiest box I got from BB had an item in it that has become an HG product for me, so I don't feel I'm in any way being gypped by their service. Most of the boxes have things that I think are "nice enough" but have no overwhelming urge to purchase, and the only items I've absolutely despised are the self-tanners. To me, this isn't a big deal, as EVERY sub has given out self-tanners at some point, so it's not endemic to BB.
Of the various subs, I do think that BB has the most sustainable model at this point in time, and I have the most confidence in their business plan. If anything, I think it may behoove them to limit new subscriptions for a while, so that growth can continue to be sustained. I also am of the opinion that it is quite likely that many of the things that the community here finds irritating regarding the actual samples are actual at the behest of the companies providing samples to BB. I can completely understand why, if a company is willing to provide 100,000 foil packets, BB isn't going to turn them down, as they could, in theory, be used to add value, not devalue the other contents of a box. Yes, to receive an entire box of single-use foils would annoy me, but this has not yet happened to me. And, frankly, I'd much prefer a variety of single-use foils to a single full-sized item that I would not be able to use at all. Everyone's perspective will be different.