Need new shipping solution

Hey everyone, we've been selling on Etsy for a few years, now mostly through our website because we've started offering larger pieces of furniture that don't fit in the regular post. So now I need a new warehouse, order, and shipping solution for oversized items (unique furniture about 6-8 feet long and 4-6 feet wide).

I was looking at Aljex, Bringg, Grasshopper Labs, and Dispatch Track. Anyone have experience with these? If so, how easy was it to implement, any CS issues, and how was tracking? Looking for real world experience only pls.