Is cloaking worth-while?

[Q]

After the big improvement of the AI with the Last patch and Modpack (congratulations to everybody involved!) the AI uses now cloaking. But is it just me or is the cloaking in SE IV rather weak? Just one tachyon detector or another scanner in the system and the cloaking is ineffective and you don't even realize it before your attacked. This is quite a difference to SE III where you could not detect a cloaked ship, but just prevent its passage through a sector with tachyon detectors.
In SE III the cloaking was perhaps to powerful, but in my opinion in SE IV it is very weak and not really worth the effort.