You mean these reviews?
1. https://www.cryptocompare.com/mining/coin-mining-central/
2. https://www.trustpilot.com/review/coinminingcentral.com

Most of them especially the positive review are fake. I would advise you not to use such sites to determine something positive about a site because most services especially shady ones manipulate such reviews with multiple accounts to fool people.

Let me give you a couple of tips on how to sense if the reviews are fake.
1. Most of the fake 5-star reviews are usually one liners and extremely full of praise about a service
2. Most of the fake 5-star reviews are made  in clusters. For example, you can find like 5 to 10 positive reviews made in a day or 2, the location tags for example for the case of Trustpilot are also always the same for the specific period.
3. The profiles that make the fake 5-star reviews usually have one review on to their profile.

I tend to trust some negative reviews because you can find an old profile that has made 10+ reviews

Now check those review links and see for yourself 

Maybe you could wait for more input from other members, but anyway it's you call.