Mpepe the you mentioned is not a crypto coin so it's not worth describing it's positive and negative aspects. The so called mpepe is a ponzi/scam website that claims to be launching the token soon but in reality are there to take balance from unsuspecting users. There are hundreds of real on chain ponzi if you are interested in. Mpepe seems to be an halfhearted effort from a novice html student to scam people who don't even have the expertise to launch a token.
MPepe may not be a coin but it's a crypto since you said they are going to launch one but this is something that we should avoid because apart from being a meme coin, it was also a ponzi/scam. If it was only a normal and legit new project with a good potential, they are definitely worthy to invest in but as usual, they can only come as second from the well-established projects.