I have had a HoC colour analysis and a style analysis.
The colour analysis was excellent. She really demonstrated which colours worked on me. She did the “warm or cool” “clear or muted” delayering much like those on the red leopard Instagram which helped me see it.
This was about 10 years ago so things may have changed, but I got a swatch wallet with all my colours in and a booklet that explained my season in words and gave colour combo advice and makeup advice. Once she’d decided and shown me I was an autumn she then redraped me in every colour in my swatch wallet and rated them all for me with me and my friend’s help (who also got her colours done on the same day). I was completely sceptical before I went, but now I’m a bit of a weirdo because I love talking about colour analysis and my swatch wallet is one of my favourite possessions 
Style analysis was more recently but probably still about 7-8 years ago maybe? It was not as good as the colour analysis imo. In part I think because they still use body shape to assign style and also because most HoC consultants are of a certain type that doesn’t wear the same sort of style as 25 year old me at the time!!
However, I do think she got my style correct. I am a natural ingenue. It explains why in a suit or blazer I look like a wally, and similarly I don’t suit “sexy” clothes or a cleavage and so on. I do struggle to follow the advice though whilst still being fashionable. Especially when current trends are quite minimalistic or edging towards masculine.
Basically I’d defo recommend the colour analysis. With the style analysis I’d say do more research maybe? Look at other services as well as HoC, and look at kibbe body types etc online.
Also thank you for the red leopard Instagram recommendation! Really enjoying watching the draping! 