In our organisation we are the only team that uses Platform.sh to host any site. This was a cost effective way for us as we were using Acquia Cloud earlier for these websites. We mostly use Platform.sh for those sites which are always in development as it is simpler and faster to handle these operations in Platform.sh. Then we do a lift and shift to Acquia as we move more towards the go live and post production maintenance side.
If you are a small business, freelancer, or any other type of user that doesn't need a lot of resources and get less than 10,000 hits per month, this is a great hosting environment for you. If you need more resources, I would recommend something else such as their sister company InMotion Hosting.
Easy setup - i can easily add domains, sub-domains, add-ons, as well as set up a WordPress installation in a matter of minutes.
Low cost - if you want to keep costs down, the plans are very cost effective with shared hosting for as little as $5 a month (there is a catch, that you have to sign up for a certain amount of time, but it's still worth it).
User-friendly UI via Cpanel - no surprises here, it's just a Cpanel that you're familiar with and works.
Excellent customer service and tech support available 24/7.
Platform.sh is not for beginners in my opinion. It has a good amount of learning curve in my opinion.
As this is a PaaS, teams habituated with cloud infrastructure may miss the server side support from their cloud teams. I believe you will have to work on server bugs more on your own.
During normal maintenance periods, integrations may fail if you are working on your sites in that time, in my experience.
Sites can be slow if you're on a shared server environment as they may be crowded servers.
Sometimes tech support doesn't know how to solve the problem - but I've only experienced this with one issue and that is site speed. likely the best solution is to upgrade to better hosting.
If there's a fix for the problem I'm having, they typically find it and help me implement it. In addition to that, they are available 24/7 to help so I know that they've got my back if I run into any problems whatsoever. Sometimes, wait times can be a little bit long, but honestly, the longest I've waiting was maybe 15 mins, so it's not too bad. Usually, I get through to them within 2-5 mins of calling.
In our team we use Platform.sh mostly while sites are in developmental phase. Then we do a lift and shift to either Acquia or AWS depending on the type of sites we have. Platform.sh is really cost effective and more fluid in terms of Continuous Development hence the usage. After said development is done, we generally lift and shift to Acquia for more content heavy sites and to AWS for more transaction oriented sites.
Web Hosting Hub is my preferred go-to when selecting hosting for a small business or freelance operation and it is also one of the lowest cost solutions that I have seen. This paired with their really excellent and always-available tech support (which I have called on holidays, weekends, and in the middle of the night) makes them a great option in my book.
In addition, they give you all the tools and access you need to manage your site no matter what you're trying to do. cPanel is a familiar environment and I have not noticed any bugs while logged in.