MAN is obviously not perfect, in T1/3 (i.e. where most passengers are processed) the experience is poor.
The TP is late. Easy with hindsight, but it should have been performed several years previously. However, we are where we are and MAN is well placed to take advantage of new technology and distinguish its self from other UK regional airports. Whether the TP achieves this remains to be seen.
The reality of a modern day airport's business model is that most money is made by passengers parking their car, buying food and drink and shopping. I'd expect the TP to reflect that (whilst conforming to a very high standard of airport functionality) and if it achieves this it will do okay.
The second runway was obviously a good idea. It's a shame it's not a true independent runway, but it looks like good value.