I am an avid roleplayer that enjoys improv, reading, and creation. Been playing for 25 years with breaks here and there. All editions going back to 1st even though I began at 2nd Edition. I prefer long epics and story arcs, with many games played from 1st to beyond level 20 over the course of a year or two. The DM seat is where I often end up, but I actually prefer to play a character that allows me to stay immersed in a single role.
I am equally happy in a hack-and-slash with deep combat mechanics in the forefront of a game, or pure theater of the mind with little to no dice. I try to stay flexible in order really adapt to a groups enjoyment. The game to me is shared storytelling, group dynamics, fun, and challenging my imagination/creativity within the boundaries of fairness.
I am proficient with and like the balance of 5E and Roll20. But I am not opposed to other systems or utilities for game play, except the pace of text only games is not for me. I woulds say a weakness of mine is front loading heavy homebrew world information out of pure excitement, but that has tempered much more recently. To that end, roll20 features have helped diminish that greatly since I can dump data there and use a more trickle approach. I would say a strength of mine is an ability to create whole characters on the fly with enough flavor to enjoy playing them, whether as a DM made NPC in a random encounter or a PC jumping fast into a new campaign within minutes.
What makes a game successful? Immersion, in-character play with an absence of meta-gaming. There are often questions on the environment or 'what a character would know' which will happen, but when I see it as a call-response-backintoplay flow, then it is seamless. Also, playing a character in-persona even when it means it leads to a bad situation or even death helps breathe belief into any story. The ones that survive and evolve add even more satisfaction