I've been an Enrich Gold member for 2 years now and this year will be my last (I purely fly for leisure). I'll still have Gold status for next year to use.
I qualify for Gold yearly by flying 50 elite sectors ex-SIN.
As a loyal Gold member who flies Economy 99% of the time, I noticed the following:
1) I can't choose exit row seats during booking but I can choose it when flying other Oneworld alliance airlines... I know I can only request for exit row seats during counter check-in.
2) Not that it's important but I've never been thanked or greeted for being a loyal Gold member while even in other airlines like Cathay or Japan Airlines, they thanked me as a Oneworld Sapphire frequent flyer who chose to fly with them.
Since I mostly fly within the Asian region on discounted Economy tickets (usually O fare), I hardly earn enough flying miles to redeem a nice business class ticket to Japan (which is my favorite place). With the recent devaluation, it actually takes less miles to fly on partner airlines than on MH so I would probably save my miles for a longhaul to europe.
However, as long as MH have significantly lower fares and have a reasonable flight schedule, I will still continue to fly them. However I just won't be renewing Enrich Gold.