iVend Retail is very scalable, so can be used for small retailers, as well as multi-branch retailers. As the software is intuitive, training times are not extensive and allow a user to progress with other areas as they become familiar with the software. Any retailer will be familiar with the functions within a POS package, but there are many extra in iVend.
If you run a retail store, or need to setup a retail store quickly and QuickBooks is your Acounting software of chouice, their POS System is a perfect choice. Given the fact that they are both interconnected and created and maintained by Intuit, it's a no brainer solution.
The alternatives in the market may be able to achieve some of what iVend does, but there is not an alternative around that can offer all options. iVend has POS, loyalty, ecom, passes, ERP and much more out of the box, without having to customise. This results in a low overall base cost.
I feel like all of these products have their own advantages and disadvantages. I feel though that QuickBooksPOS is especially beneficial when paired with QuickBooks Accounting Software creating a combination paired from a single vendor as opposed to multiple vendors and managing integrations that may or not break between release cycles.