Don't know them particularly well but I would say Alexis is a hard worker and is committed to doing his best at all times. Dad has been successful in business in his own right and is applying the skills he acquired in that arena to Alexis' career. He doesn't directly coach Alexis but is more of a manager. He is certainly not a pushy father in the sense that most of us understand it. However, his son's tennis career is now his main focus and IMO that can be a little bit dangerous as there's a very fine line between being supportive and helpful and stifling a child's development towards maturity. Dad's a lovely chap and I think at the moment he is just the right side of the line but he needs to be careful that Alexis doesn't start to feel he is doing the tennis for his father rather than himself.
Yes, a similar vein of thought. I've only seen them all together twice but I felt that Alexis was very 'taught' and I couldn't help wondering if it was rather for his father, who may well be a lovely bloke, and not pushy, and maybe not into reflected glory, but I didn't see much 'love' of the game coming from Alex, in fact, he looked all rather strained (and it wasn't a particularly important match).
NB viv-a-vis the coaching, presumably Josh G is the main guy. But it was curious to see both Josh and father using some really old-fashioned coaching methods - not saying they're bad as such but that technology and methods have moved on hugely and no one else does it like that any more. Frankly, if I were his dad, and money was not the overriding concern, and Alex was up for it obviously, has he not thought of him going to an Academy for a year or two? More modern, diverse approaches would (in my view) be a good idea and might possibly give some space for him to develop in his own right.