The problem with web hosting reviews is that it can be difficult to decide whether the bad reviews really mean anything. It can be very tempting to read a long list of bad reviews telling you to stay away from the website hosting company that you are looking into but that does not mean that it generally is the worst company out there.
All companies will get bad reviews from time to time and bad reviews tend to be found in packs. However, there will also be good reviews out there somewhere and you will need to look for them. It all depends on the keywords that you search with.
If you specifically search for bad reviews, then that is what you will get and there will be no good reviews anywhere. However, if you just search for reviews, you are more likely to get a range of different reviews about a particular company. You should always check for what you are searching for to ensure that you get a fair list of results.