Long term there will be not need for an MSTR token. It will go to zero relative to BTC. People are paying for his "wall St. wrapped BTC." But get it twisted: MSTR wrapped BTC is not BTC. His goal is the same as all token sellers: take your BTC and sell you his token. This is not a personal judgement: this is just an economic reality.
I do not think MSTR is good for bitcoin (increasing price). Same reason I don't think ethereum is good for bitcoin. Ultimately these "counterfeit" or "affinity scam" or "custodial" or "paper" assets are leading to price suppression. They are buying the fake BTC or instead of buying real BTC. Real BTC: meaning withdrawn to personal wallet. This lowers the actual BTC supply, increasing price.
If you want to say "michael saylor is good for increasing visibility of bitcoin" possibly, perhaps there are some normies out there who got into BTC because of him. He also causes people to buy MSTR. Then when MSTR crashes, they will be burned from buying BTC. Compared to Paul Sztorc or Peter Todd or anyone who is actually involved in actual BTC coding, his contribution to the information space is nothing.