I have been having reliability problems for the past several weeks, ranging from several hours to several minutes of downtime. Dreamhost says they cannot provide any uptime statistics so it is hard for me to trust that they will be reliable over the long-term.
I have only been a Dreamhost customer for approximately 3 months, so I want to believe they are just working past a few hiccups in their systems. But it's difficult to risk hosting my critical websites with a host that goes up and down like a rollercoaster.
I will post again to let people know if I've had any success. But at the moment, I have many doubts.