This works both ways obviously.
Wrench, I dont think you realize what can of worms you just opened here; there is quite a few haters roaming the RAZBAM forums, looking to point out all the items missing or wrong according to them in every single thread. Im not saying that he is not right; what he is pointing out is indeed missing or not working. But it looks like a massive list, like an alpha module, whilest in reality its not that big of a deal, unless you are throwing the 'owe' argument ofcourse.
I'll try and give a bit of a neutral opinion; all the major systems are in place, and you are able to execute any mission in good fashion, with a little work around sometimes. The systems could use more fleshing out, but RAZBAM said that they will finish the Harrier this year. This being DCS and the amount of news we heard lately, I would probably expect it to be somewhere 2019, delays happen a lot in DCS.
Is it a good investment on sale? Yes, especially with the finishing of the module being within under a year.
Don't let all the haters get to you.