Sorry to hear that your update didn't go well Wilson.
I have helped hundreds of people with their updates in past week and I can tell that majority of all reported issues (about 70%) are connected to third party plugins/themes which are not yet compatible with 1.6.
Only about 20% of issues turned out to be real bugs either within the core platform or within our plugins. We are working on fixing all reported/confirmed bugs. Updated plugins and fixes are on their way.
I understand your recommendation to hold on with the update. However even if you wait for 1.6.3 with all the fixed bugs, you can't be 100% that update will go smoothly.
Therefore I strongly recommend to start trying to update now. If you don't want to do this on your live site, then make a full back of your site>>install it somewhere in subfolder creating a testing environment for updates. Try updating this test site, so that when you are ready to update your live site you are prepared and know what you are doing.