I am one year post op on May 31st. I have drank one protein shake every morning since about 2 weeks post op. I plan on doing that for the rest of my life. I really like them, especially now that I am in maintenance. According to my surgeon and his staff (I say staff as three of them had VSG surgery from him) most people do indeed continue to have one protein shake every day forever.
Whichever protein shakes you use the guidelines per my nutritionist that have worked well for me are
1) 100% Whey Protein Isolate (Whey Protein blends and concentrates are not digested as quickly and therefore some of the protein doesn't actually get processed and absorbed)
2) Less than 5 grams of carbs per 8 oz serving
3) Less than 5 grams of fat per 8 oz serving
4) About 24 grams of protein per 8 oz serving (Any more than about 30 grams actually also doesn't get absorbed by our bodies and therefore is also wasted.)
With sugar free syrups, Hershey's Special Dark Unsweetened Cocoa (adding Splenda or Stevia to sweeten), and other ways to add flavor to your shakes anything you get is going to work out. You can add flavors to make anything taste better.
That being said I love About Time as it is 100% all natural with only four ingredients.
1) Whey Protein Isolate
2) Natural Flavor
3) Stevia
4) Xanthan Gum (a natural thickener)
There are many flavors but the flavors in any whey protein isolate tend to be somewhat subtle.
I get mine from GNC as they run about $45 online and give you about 28 servings. Right now if you have a purchase of more than $10 at gnc.com or your local GNC you get a free one year membership that gives you up to 50% off every day ($15 value)
http://www.gnc.com/search/index.jsp?kwCatId=&kw=about%20time &origkw=About+Time&f=Taxonomy/GNC/13200328&sr=1&f=PAD%2FBran ds%2FSDC+Nutrition&fbc=1&lmdn=Brand&fbn=Brands%7CSDC+Nutriti on