I also think that the GC of D is really a nice feature. Sometimes you want manual memory management in low level code, but there is also a ton of stuff where it doesn't really matter and a GC just makes things easier. For example, if you're writing an in-memory cache service, you really don't want the cache entries themselves to be tracked by the GC since the GC is often unaware of the actual access patterns and just gets in the way, but most of the other components of that service are better served with a GC.