It might be well known but it doesn't have a lot of history as it is still new. If you look at alot of hosts advertised here they close down in 6 months so you need to be careful with new hosts, even if they are kind of well known.
Hold on now... @ Fowler.. Are you saying that TMD isn't reliable since its not known?
I was also thinking about DreamHost or other host similar to DT & TMD regards to the ToS.
If a host has been around for 4 years then the chances are in 6 months time they will still exist. If they have made it in the business for 4 years they must be making enough money to keep running. Many smaller hosts struggle to get the income to keep alive and close down. There is so much competition that small new hosts struggle to get customers to actually cover the costs.
I didn't mention anything about TMDhosting not being well known. They have been around for years so must have many customers and must provide an ok service.