Arnolds custom and Classics in Herts

Hi guys,
Just reaching out to any UK owners tat might have had experience with this company near me in Hertfordshire .... need to get a bespoke air con fitted to my 40 and these guys came up on a web search.... always like to do as much due diligence as possible when using anyone for the first time so thanks in advance for any comments which would be most welcome.
Have put the link below....:)