It Just Works, It's Just Worth It.

Fine-grained integration of some features - including two-way inventory and accounting management with third-party application providers

Documentation of Store Variables - need more context detail, as well as availability in actual usage (i.e. sometimes variables just come up empty and it takes a little bit of trial-and-error to get some things working for specific but useful use-cases)

Allowing fine-grained control of staff permissions - most of the necessary permissions are all-or-nothing (e.g. product inventory access requires full product edit access so most of the time only one person gets burdened with multiple responsibilities instead being able to effectively delegate inventory management to the warehouse manager while keeping product edit access i.e. price, description, etc. to sales administrator)

Being on the legacy platform (and there's just a huge cost to move up to the new platform because there's no straightforward upgrade of our business customizations), there's no way to save the cart with the account; the cart is saved on the device. Some may see this as a feature, mostly it's a bit inconvenient.

Platform Updates - kind of a double-edged sword, because they made a foundational platform switch (to Stencil) just as we came into BigCommerce and finalized all our customizations and workflows on the existing platform (the now-legacy Blueprint). As mentioned earlier there's no straightforward way for us to switch over to the new one, and we'll have to rework our interface and access customizations if we want to take advantage of the new platform's features. What we are most thankful for, though, is BigCommerce keeps fully supporting the legacy platform, which means our business can keep functioning as we need it to be. Hopefully they'll do this for life, or at least until we consider tackling the (high) costs (time, energy, money) of switching over to the new one just because we were so invested on the old/legacy platform.