Gave it a quick read, would give it 3 stars out of 5 in the Science Fiction category - pretty much like any other Presidential budget.  The Republicans have their pet spending ideas, the Democrats have their's, just shifting the costs around, and rosy predictions.  Some quick observations. 

1.) Any estimate past two years is an educated guess, anything past 5 years is just a plain guess.
2.) The 3% GDP growth rate, while possible, is pretty optimistic.  If that doesn't happen, the future year estimates are garbage.
3.) Government spending continues to rise.
4.) Note that the budget still shows revenue from the estate & gift tax, thought the President was going to abolish that.
5.) Since the tax reform is still conceptual, hard to predict the effect.  The budget seems to assume that revenues will continue to increase without missing a beat.  How the President will implement HUGE tax cuts and still pull that off is beyond me.
6.) There is that 2 trillion in "effect of economic feedback".  I've heard that it is the revenue increase that makes the tax cuts revenue neutral.  If that is true, then his budget table (S-1) is correct.  Not sure you can also then show that 2 trillion as a separate line item on Table S-2 as deficit reduction.  That needs clarification.
7.) the "two-penny Plan' (1.4 trillion in savings) is pretty nebulous.
8.) There is still an increase of a trillion dollars in the national debt over the next two years. And continued increases after that.

Guess I'll need to dive in with some more detail later.

Sounds better than pretending there's a magical dude in heaven! I mean, at least Julius Caesar was actually there in front of them.

The high employment under Obama was fake, but the same thing under Cheeto Benito has to be true.  Whatever.

I'd like to throw something else into the mix.  Let's say we outlaw abortion and force women to have a baby they don't really want.  Who's going to pay to take care of that baby?  Are they all going to be put up for adoption?