Avoid for business use: Premature server termination and obstructed domain transfers.
1. Premature Service Termination:
I had a server with Absolute Hosting for 2 years. Despite paying for the full month, they unannouncedly shut down my server 5 days before the end of the term. This took my clients' websites offline without warning. When I contacted support, they refused to restart the services, claiming the "term had ended" despite the calendar month not being over.
2. Bureaucratic Obstacles:
Every simple request required a minimum of 4 emails and exhaustive "detailed explanations" for why I wanted to make changes to my own services. The level of red tape for basic administrative tasks is unacceptable for a modern hosting provider.
3. Obstructing Domain Transfers:
After I renewed three .co.za domains (paying them in full), they immediately applied a clientTransferProhibited lock to prevent me from moving them to a new provider. There is no Registry-level requirement for this lock on renewals; it was a manual hurdle placed by the ISP. I only managed to get the lock removed by threatening a formal complaint to the ZARC (ZA Registry Consortium).
Final Verdict:
If you value your uptime and your right to own your data, look elsewhere. Their "security" is used as a tool for customer retention rather than customer protection.