Honestly - no.
We are a bunch of devs that do this in our free time besides our "real" jobs - the VNAV turned out to be way more complex than expected, and we needed to finally get the plane on sale when we did.
The one person in our team that can finish the VNAV (we probably need to rewrite a good chunk of it) is sidetracked by his real business and does not have time to tackle VNAV right now. We ARE planning to finish this, but unfortunately I can not even give you a timeframe.
The plane is 75$ and it is incomplete at this point, no doubt about it. Is it already a lot of fun and worth 75$? I personally think so. But if you expect "completeness", don´t buy it (yet).
I am part of the IXEG team and love to make a sale, but I won´t lie to you or try to convince you to so something that you will later regret. Thats why we also highlight the shortcomings of our aircraft in this thread, for everyone to see:
The list should be up-to-date (will go over it really quick).
I am sure the other users did not mean to be condescending - but we have a LOT of people that couldn´t fly their way out of a whorehouse (is this the correct figure of speech? ) without LNAV and VNAV and when people start complaining about lack of fully automated flight the suspicion lies close that these features are sought after for lack of ability to cope with selected modes (or even - gasp - manual flight).
Cheers, and all the best, Jan