Like I said, I'll go in to much more detail on Tuesday during the stream but this was just the first step and modifying the loot progression as a whole. The quick and dirty of what went in today is that there are three 'tiers' for equipment and I have smoothed out the curve for which tier you'll be likely to pull from depending on how far along the 'item progression' you are.
I should also mention thats the odds to get a SPECIFIC Unique. Your odds to get any tier 3 unique weapon are about 1:174 (up from 1:277). Your odds of any unique are obviously higher.
Using the Sullevin Blade example, here is how the system breaks down what you got (in the most non-technical way possible):
1) You get an item
2) You have a chance for it to be tier 1, 2 or 3
3) IF you rolled tier 3 you have a chance for it to be a Tier-3 item of either armor, weapon, accessory, upgrade, or a rune for the tier you rolled
4) IF you rolled a weapon you now have a chance for it to be normal, rare or unique
5) IF you rolled unique you now have a chance for it to be a 1h weapon, 2h weapon, bow ...etc.
6) IF you rolled 2h weapon you now have a chance for it to be a Sullevin Blade.
So basically #2 has been drastically improved. Next will probably be #3 and 4 relative to your item score.
You're welcome to wait until the next drop of improvements before spending gold BUT I will say that on top of my plans to add a bunch more rare and unique items in to the tiers I also might pull some out 