It is better to trust people who are often playing gambling in the gambling site than to trust from the reviews because they can use fake reviews to make their site looks legit. Using small amounts for deposit will be better too if you want to check on how good the site so you can feel safe when you continue playing the games. But don't forget always to take care of your money and never use big money to play because playing gambling can risk all the money you have and you have a chance to lose all the money.
For a freshly created gambling site, the reviews will be either fake or paid, which also means fake obviously. If this is my money, I would rather trust my own experience or, in some cases, the experience of my friends and make a decision based on all factors. This is a reasonable strategy that works not only in gambling, but in all aspects of life as well.