I did a dianabol only cycle a few years ago, I was underage, didn't know much about steroids, it was my first cycle.
Initially was planning to do 20mg a day for 6 weeks, which quickly changed to 60mg a day for 8 weeks once I started feeling it.
I gained a lot of mass, retained enough water to make my face wide as fuck, got stretchmarks on my inner thighs and armpit/chest area, and put a lot of weight on all of the big three lifts. I lost a lot of that size pretty quickly, but maintained a decent amount.
At a pinch, I'd do it again, but there really is no reason to when testosterone exists to go alongside it. If it's because you're scared of needles, then steroids are not for you.