The issue with saving the game only seems to affect a small percentage of players, so I wouldn't put too much weight on that. It's likely to get fixed soon anyway.
The match engine is not a problem at all. There are still some tweaks needed of course, but when isn't there? As far as I'm concerned, it's definitely worth buying if you're a fan of the franchise.
The biggest gripe for me at the moment (apart from the saving of course), is the UI and player interaction. But it's nothing major that'd stop me from buying the game if I hadn't already done so.
But these tweak as you mention, it is remarkable tweaks?
Will it come a new patch that improves all these tweak ?, when are you thinking then new patch coming? In thinking about buying the game when the next patch is coming, but i want to play this game right now so much!!
Would be appreciated for answers