I tried it for about 2 years but gave it up. Why? Because trying to daven in the morning was all but impossible. Shavuos, like any other day of the year, we’re supposed to daven with proper concentration and kavano. Now I actually have a medical condition that flares up and becomes totally debilitating if I don’t go to bed by a certain time each night. So I will certainly do some learning after the Seuda this evening. But after an hour or so, I’m going to get to bed.
My son also told me that his Yeshiva Rebbe led a discussion as to staying up all night, and pointed out that the minhag is a bare 400 years old. It is absolutely not Halacha, and the Rebbe said much of what I stated about the need to be able to daven properly. So, you’re not doing anything wrong by not staying up. You are likely doing yourself, as well as Hashem, a big favor.