What I like most AND what I don't like most - about D

[forkit]

So this thread is designed to bring some balance, between being 
negative about D, and being positive about D.

To participate, you must (should, since I cannot 'enforce' this) 
post two things:

(1) What I like most about D:

(2) What I dislike most about D:

Please keep it simple and short, ideally one item for each would 
ideal.

passive-aggressive types.. stay away...go somewhere else please!

if you're eager to respond to someones post, please take a moment 
to consider whether that is in the spirit of this thread.

I'll start:

(1) What I like most about D:
     D is a multi-paradigm programming langauge, and enables what 
I like most, which is flexibilty towards experimenting with 
different approaches during the design phase of a solution to a 
problem.

(2) What I dislike most about D:
     There is no option to declare an invariant of a class type 
that the compiler will enforce, during compile time, from code 
surrounding that class (in the same module) - including unit-test 
code. But easily solved with something like 'scope private', if 
it were available in the language.