I've got one Better Bottle I must have had for close to 10 years. Maybe more, but I can't recall.
The only issue I've had with it is I got some scratches on the inside cleaning it before I knew better.
But it still works just fine. As a matter of fact, it's full of stout right now. Next to my other Better Bottle (at least 5 years old) which is full of tripel.
I'd buy more, but I don't REALLY need them. I'm down to one glass 6.5 gallon carboy, which I guess means I've broken two over the years. Funny, as I can only recall one broken...
On a side note, you can skip the secondary unless you're dry hopping, oaking or need to free up a fermenter. Not really necessary.