I use Swerve (erythritol) on occasion because it's the only one my taste buds recognize as sweet without an aftertaste. However, I have noticed a slight tingling on my tongue now. An upside to my few months on a (very loose) keto diet is that I actually don't crave the sweets as much so I tend to just go for the real deal if I feel I want something sweet.
RE: Keto For Beginners: Keto Friendly Sweeteners