I've used Voyagers for 20 years with great success, going back to my sailboat days. The brands I hear of guys having the most issues with are Interstate and Exide. A lot depends on the battery and how it's used. A "starting" battery or a "Dual Purpose" battery is not a true deep cycle and will not hold up to the deep discharges from a trolling motor.
2015 Seaark 1872 MV CC Etec-90
Two Helix 12 CHIRP SI's, , MinnKota Riptide ST80/i-pilot Link, Bob's Hydraulic
Bitter Gun Owner