UX is the new trending
The user experience is the way that you can ensure that your platform will be use, in the end, it is the most important features because the user is the one who will evaluate the function and usefully of your system. Take in count that you can have a good content but without offering a product capable of support and share it in a good way this information will be in a second plane.
In other words, when you want to create a LMS and focus it in eLearning you should think in a system that allows you to create a unique experience for your customer, that will be the cheat for the success. According to my experience, I recommend you Paradiso LMS, this system has several integrations and possibilities that will help you to engage your team and provide a different way to show your content. They also have a Free LMS version that you can use to have an idea of the product.