Trusting new altcoin would really be hard since there would be lots of things to be considered first before you would decide to put up your money on it.I do usually look up for the team.If I saw that none of them do have the records on scamming on past project and I do see on their level of experience on such field.There are newbies or amateur on this field which they usually end up on failing since they don't even know on what they are doing.
Next is their white paper and roadmap.If I do see that the project do have world usage or does really contribute and a new innovative way of things then I do usually invest on these stuffs.