I use the Pepwave Balance 20X with the Cat12 add-on card with four SIM cards installed. AT&T is my primary provider (with a monthly usage limit of 1TB/month, no fair use limits), but I also have two T-Mobile SIMs (with "unlimited" plans, but with fair use cutoff at 50GB/month) and a Verizon SIM (50GB/month). It's a dual radio setup, so AT&T and one of the T-Mobile SIMs are always active, the other two SIMs are for fallback.
I would not recommend using the whip antennas, the roof mounted 4x4 MIMO antenna should be considered a must in my opinion.
I use the Pepwave Balance 20X with the Cat12 add-on card with four SIM cards installed. AT&T is my primary provider (with a monthly usage limit of 1TB/month, no fair use limits), but I also have two T-Mobile SIMs (with "unlimited" plans, but with fair use cutoff at 50GB/month) and a Verizon SIM (50GB/month). It's a dual radio setup, so AT&T and one of the T-Mobile SIMs are always active, the other two SIMs are for fallback.
I would not recommend using the whip antennas, the roof mounted 4x4 MIMO antenna should be considered a must in my opinion.