After having used many different kinds of hosting services and servers, I managed to stumble on to ReliableSite around 6-7 years ago to host my game (GoS).
Since that time, I have never gone back to any other host, nor have I even thought of doing so. The servers they have work fantastically for my needs, the pricing is perfect (especially if you lock-in yearly BF deals), and the customer support gets back to you in most cases almost immediately.
I've definitely had an issue or two over the years, but they've always stepped up to the plate and have addressed my concerns, even when I was having issues that "unmanaged" servers wouldn't be applicable to have help for fixing issues. They've been stellar in about every regards, I've almost never had even more then a few hours of downtime in 6-7 years of usage (which alone is just incredible), and I plan to continue using them hopefully for many years to come!