Off the top of my head, consider:
The above requires a reference to the MS HTML Object Library and IE9+. As you can see, the early bound object has access to the method, whereas the late bound does not. It isn't really a major issue, especially if you set minimum requirements for your workbook since nothing beats proper testing on different platforms - just something to bear in mind.
FWIW I rarely ever used late binding, since there was a set structure of software where the versions could be guaranteed. I mostly use late binding when replying to answers in forums since it gets the solution up and running more quickly without confusing posters.
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