Firstly I will disagree with @Stinsy: LFP is not boring, it is very interesting!
But yes, I can now charge harder and faster without watering and with fewer losses.I have had a few issues with my communication and driver mods to show everything on the Victron system, but that's more me being a bit obsessed with making the integration provide data and keeping a closed loop control system all up to date on Victron VenusOS.
As I didn't top balance the cells, thinking they were close enough after first charging them to just under my target 28v (3.5v p/c) before just using them, I then found it took two months during winter to properly balance them all to around 5mV at the end of every absorption. I also found I had to ramp down the final charge current as the voltage increased to stop a few runners from hitting 3.5v before the rest, and they tended to be the cells that had a lower SOC but would start to balance down as their voltage was higher, but then the others caught up and the first runners were now lower from from earlier balancing.
I use Dbus-SerialBattery driver for Victron VenusOS to set the charging algorithm and closed loop controls, It's the most comprehensive charge control parameter set I've seen, all configurable too. As I have three JK BMS's I also use Battery Aggregator to allow them all to be aggregated and able to send charging parameters and alarms to VenusOS on the CerboGX (the central brain) and then to the mppt's / inverter.
It all works well, and you can see in my signature a link to the live data, or even select the advanced tab and look at different date ranges for the graphs I've set up.
It can go wrong though, like last night when I decided as everything was running so well, why not update it all...
and quickly found the updates broke the BMS communication, and Victron in their wisdom has decided: if a BMS loses coms it will shut down the Inverter! 
then I'm scrabbling around in the dark trying to figure out how to sort it.. 
Reminder: We're off grid with a diesel generator backup, so not ESS as most here are, but thought I'd compare the efficiencies of our flooded Lead (Pb) batteries this time last year, with the 26kWh of LFP. here are our updated efficiencies of both the batteries themselves and the system efficiencies, taken a few days ago:
Last 90 days on LFP:
Solar = 657kWh
Generator = 302kWh
Consumption = 758kWh
758kWh / 959kWh = 79% System Round Trip Efficiency
With Pb over the same 90 day period last year:
579kWh / 891kWh = 65% System Round Trip Efficiency
LFP:
SmartShunt 100% to 100% SOC - Discharged: 687kWh - Charged: 717kWh = 96% Battery Efficiency
Pb: (Old Bank)
SmartShunt - Discharged: 4,453kWh - Charged: 5,684kWh = 78% Battery Efficiency
So a 14% System efficiency gain from Pb to LFP, or 18% battery only efficiency gain from Pb to LFP. 14% of last years 90 day 891kWh generation = 125kWh lost due to Pb inefficiency, or 14% less diesel needed with LFP! - That's all quite exciting.
Obviously there are many variables if anyone is comparing theirs to ours, and we don't have an ESS setup that may have more AC-DC losses vs our DC MPPT's and only self consumption, but it's still an interesting comparison of LFP vs the old Pb.
TLDR: It works well (normally)
