Is their platform perfect? No. But their servers have excellent up time and they have a great base feature set. In fact, they have features that many enterprise solutions still do not offer without customization.
I can’t speak for all shopping cart platforms. I can only speak for (and vouch for) those that I’ve used. That said, I’ve used every plan that BigCommerce has offered over the last five years. It has been a real pleasure to watch their platform, team, and offerings continue to grow.
So… Is BigCommerce worth it? Unfortunately I can’t definitively answer this question because every online retail setup and leadership team is unique. Ultimately it’s up to you to do your due diligence, research several solutions, and find the platform that best fits your needs. That said- in my opinion, BigCommerce is a solid choice for most small and medium sized businesses looking to launch their online retail store or migrate from an older platform.
p.s. During your research phase, don’t fall for marketing hype. If they are worth their salt, an SMB ecommerce platform will offer you a free trial. If you have the skills build a prototype of your store on several platforms. Then test, break, and test again. Ship a fake order. Refund a fake customer. Test, break, and test again. Be sure to do this because migrating to a new platform a year later can be a major headache.