[Vala] Is there any usable editor for Vala?

["Matthias Berndt" <Matthias_Berndt gmx de>]

Hi,

I wonder if you have any recommendation regarding a decent editor for Vala.
I don't need much, just code completion and "go to declaration", but I can't seem to find anything that 
works. Here's the one's I've looked at:

Anjuta: Imported the vala compiler as an autotools project, but neither code completion nor go to declaration 
works.
Gnome Builder: crashes as soon as I open a .vala file.
Geany: completion only suggests bogus (i. e. it offers methods that don't exist, doesn't offer the ones that 
do etc.).
vala tools for gedit: not tried, but seems dead (last release was five years ago)
valencia: also seems dead, couldn't get it to compile
MonoDevelop: Vala support seems to have been removed
Valama: Completion works! It also has 100% CPU usage at all times, millions of "self != NULL" assertion 
failures, no way to import existing code, it is slow and if a "go to declaration" feature exists, I couldn't 
find it. So it's also not really usable.

What do you guys use to hack the vala compiler?