My experience with Hosting 24 dates back to at list 2 years.
As with any other host there was some miss-understandings at some point, but 'hay', when you getting a reply from a support within 1 hour or sometimes right away - nothing matters more.
Most problems solved as quickly as the support has arrived.
Even, that I am located in the United Kingdom and most of my sites too, the speed are so great never had an issue about it.
The up time is great too - I am checking my sites regularly and always on a daily basis.
Sites been down 2 times in the last 2 years and a max time the sites been down for around 2 hours.
So I would give them 99.9998% up time, which is quiet good compare to other hosts out there.
Great host would recommend anyone who is looking for simple solution to their or their clients websites.