I did 35 hours FNTPII. I wish I hadn't with hindsight but after all experience is what mother nature gives us just after we needed it. I think I took another 30 hours twin ac time to pass the IR test.
I think 25-25 split is better.
The sim does have its place and is a good place to learn procedures but the big difference is that things go according to plan in the Sim but not in real life.
Eg the planned wind in the sim is the wind you fly. In real life it never is.
In the sim the instructor pases clearances when you have nothing to do, in real life they always happen as you are doing something else (eg top of climb checks, followed by an altitude bust)
In the sim the radio does not get jammed by tyro PPLs asking for radio information when you are trying to calling beacon outbound. In real life it does.
Another real bone I have to pick is the school I did my training with (now no longer trading) insisted you complete the sim section before you start the flying section. In reality you are pretty much done with the sim after 20 hours and need real experience but it would be useful to come back to the sim for a few hours in the middle of flying to drill home some lessons you are having trouble with. I think it may have something to do with scheduling instructors or it may be a CAA restriction.
I would also be prepared to budget another 50% for the course than the advertised price.
Finally good luck with the course. Its hard work but worth it in the end.