The big reason I went with a Link 10 is because I used to work for Heart Interface back when those meter came out - a sister company manufactured them: Cruising Equipment. Their version was called the E-meter. CECO and Heart got swallowed up by Xantrex in about 2001.
I also like how the Link 10 ( and Link Lite, Link Pro) are more compact than the Trimetric meter.
The Link 10 will become more accurate over time, because it performs some pretty complex mathematical calculations that occur as the battery is recharging.
It monitors the battery bank efficiency, and makes adjustments to a number (via those complex calculations) called the CEF, or Charge Efficiency Factor.
It stores historical data too:
Average depth of Discharge
Deepest depth of Discharge
and I forget what else....
It's been a while since I used all those functions.
I used to remember that stuff like the back of my hand - when I was fielding tech support calls on them.