Nice integrated until you have a problem with it. Some 5 years ago a friend had one with a problem. His emails to Italy went unanswered for long periods of time! And no one in the US seemed capable of resolving it (probably no schematics available). Now that aside, I seriously doubt it's true balanced (only 2 tubes). Checking Pathos site, no indication it is true balanced: many companys add XLR inputs for convenience, not because of an actual sonic benefit, but if that's what you have why not use it?
You will likely get much bigger benefits by treating all your cables with Mad Scientist Graphene Contact Enhancer. IMHO, by far the best tweak one can make
hth