The free version of SmartBuilder is very comprehensive to meet the needs of introductory IDers. If you are working with a small or even medium sized learner pool, this may be the right tool for you. The free version is very comprehensive, to meet the needs of the designer and the learners, without breaking a set budget.
I personally was able to utilize this tool to create interactive eLearning modules for a local camera club in the Chicagoland area. My learner pool was 40-50 members, along with various local groups we partnered with, providing the learning modules to them free of charge. If you take the time and make the effort to utilize this tool and all of its features, you can create elaborate, effective eLearning, with little or no budget.
If you have a limited budget and are looking to utilize an authoring tool for eLearning on a small-scale, this is the product for you. It has many similar functions to the big name products such as Storyline and Captivate, while being a free product.