Using Rackspace Cloud hosting
Rackspace Cloud hosting performance-intensive applications such as video editing are not suite to the cloud. Nor other types of software that require high-performance desktop computers (such as those used for graphic design).
Rackspace Cloud makes your small business dependent on the reliability of your Internet connection. When it’s offline, you’re offline. If your internet service suffers from frequent outages or slow speeds. Rackspace cloud may not be suitable for your website.
How safe is your data? Rackspace Cloud uses the internet to store, manage, and process data, rather than a local server or a personal computer. Keep in mind that your cloud data is accessible from anywhere on the internet, meaning that if a data breach occurs via hacking, a disgruntled employee, or careless username/password security, your business data can be compromised.
Having to customize your cloud-based software to suit your needs can add greatly to the cost. Based on benchmarking, performance is about the same between a 1GB and 16GB cloud server. You are basically just paying for more memory. Vertical scaling will be difficult within Rackspace Cloud. If you use custom-developed in-house software, it may not be possible to move it to the cloud without an expensive re-write – definitely a disadvantage. Like cell phone plans, the devil can be in the details with cloud service contracts.
Very limited features in their cloud environment
Rackspace cloud hosting lacks many of the more advanced cloud features. Like, auto-scaling, reserve/spot pricing, external storage, reserved IPs, private cloud
You might become a “forever” customer because their applications and/or data formats do not allow easy transfer/conversion of information into other systems. Your account is associated with a single data center only and you can only deploy to that data center. Some vendors deliberately attempt to “lock-in” customers by using proprietary software/hardware. So that it is impossible for very expensive to switch to another hosting server.
Poor customer service was a constant complaint from users. If your business needs rapid response to customer support issues. Make sure that your hosting has plenty of options available for technical support, include email, phone and live chat.