hmm, it should be need to check before investing in any of the altcoin projects as investing in altcoins is the very picky part which is why you have to check the pros and cons of the desired project you are going to invest. Well in my opinion there is a very rare chance you may find such a project that has all the qualities you want so that you can invest into that particular project without thinking all projects have some cons but those projects that have more pros must be considered to invest.

On the other hand, you may think about how I check the altcoin project before investing so I check if he team is actively working on the project ecosystem, project should have a strong community and actively participate in the community, is the team is collaborating with other good project to make their own project more successful... these are some thing i keep in mind before investing and i know there are also many other stratagies you guys may have must share your strategy of checking project.