Good value. Halfway between the Portable Power Packs and your typical 120ah battery box. A happy medium between portability and power, with ability to customise to your needs (portable solar, auxiliary battery mounted in car, etc).
Don't forget to confirm if a MPPT, DCDC Charger, Inverter, etc is required to meet your specific use case. If you have any questions, post a comment and I'll do my best to answer them.
eBay vs Direct
4WD Supa Centre Direct Link - eBay Link
Shipping is a flat $31.50 through eBay while shipping varies based on postcode via 4WD SC's online store. May be cheaper or more expensive. If you have vouchers, giftcards, or want extra buyer protection then it's better to go through eBay.
You can click and collect for free both directly and eBay. If you select C&C on eBay you can leave a message/note on the order with your chosen store. If you don't, they will use the store closest to your billing address. View store locations.
Useful Battery Videos
Crash Course on batteries
How to install a DCDC Charger on a Battery Box - Enables charging via alternator (car) and solar
How to use an MPPT Charger - Enables charging via solar only
Teardown
No Bueno