Reviews are the default way to do your due diligence when it comes to consumer decisions, such as whether or not to make a purchase. There’s nothing wrong with this; for other types of hospitality, such as a restaurant or hotel experience, reviews can indeed be very useful.
Spa breaks are different. An approach to choosing a spa break that mirrors that of choosing a restaurant or hotel, namely reading reviews, misses important variables that determine how a particular spa will suit or not suit you as an individual. For Spa Breaks Cotswolds, consider https://hatherleymanor.com/the-spa/spa-breaks-cotswolds/
The experience at a spa is very personal. What constitutes a perfect environment and degree of silence and minimal social interaction at one spa might be completely at odds with another guest’s experience, where they find the place too quiet, too exclusive and not lively enough in terms of company – perhaps it could have done with a buzzing pool area but didn’t have one. In both cases, the spa experience might be ‘objectively’ well-executed, yet the two sets of reviews would seem to contradict each other. Yet none of them are necessarily ‘wrong’.
The same limitation applies to reviews of the treatments themselves. A massage might seem too intense to one reviewer but to have exactly the right amount of pressure to another. A facial might seem rushed or not make full use of the hour to someone expecting all aspects of the process to unfold like some kind of ceremony, while someone else finds the treatment perfectly paced and loves the results. These are not issues of quality but of differences in preference. However, review aggregation would read all of these differences as the same thing.
In short, reviews rarely pick up on the variable that matters most to you. That is: how did you feel when you left? How did you feel a few hours and even a few days later?
No one else’s feedback can ever tell you that: only your actual experience of it.