LowCode vendors: some are pretty aggressive in their sales strategy, but in general they are all the same. Their platform can do anything and is the best. Sure!
We skip those sales and pre-sales people because it's our sincere advice to rigorously test before you buy. When you are using free platforms or better-priced platforms, perhaps it's ok. But when you find yourself being locked in to a three million-a-year platform, which needs a team of 50 developers to maintain your self-built software, you should really question yourself whether you still have that ROI on your LowCode platform. (And yes, this is an actual example)
There are some very happy customers and ISVs using LowCode. We have seen successful projects and transitions for companies that started using LowCode.
Also, the vendor is important when it comes to service. Service lock-in is part of most platform vendors and that is no problem, as long as they provide good service. To be honest, most platform vendors do a pretty good job, but some do better than others.
If you want to become a reseller or partner of LowCode vendors or build software as an ISV again, some vendors perform better than others.