A solid team is always favored in this market because it means, the responsibilities are being distributed. A solo project is usually frowned upon because the lifespan is always questionable here. Since your features are not new and you have a very busy market to compete with, I believe, we need to see this project grow from one-man team to multiple team members. Until then, many will just observe how you will grow in this market. Earning credibility is not overnight success, it will be years in the making. So good luck!