All in all what is it good for ? Litecoin was meant to be 4 times quicker than Bitcoin anyway to address the slow transaction problems Bitcoin has from time to time........
Whether SegWit adds more speed or not, SegWit offers developers a way in to add a multitude of transactional tricks, this is of more interest for many than speed of Lightening which it doesn't really need right now however if you watched the presentation by Charlie Lee he offered some use case in combination with Bitcoin.
Although the specific working numbers of LiteCoin do not match Bitcoin I see it as similar to Bitcoin as a solution handed out on a plate for all those who want an immediately cheaper, fast, programmatic system that could thrash VISA transactions.
LiteCoin has almost clinched the deal on having something Bitcoin desperately needs.
I've never checked the transaction speed, maybe it is 4x faster but really, to be something to compete with VISA 4x wont cut the mustard.
litecoin is 4x faster because the block tiem is 2.5 of what is bitcoin, if you reduce the block tiem to 1 minute you get more capacity, it's like you have the block at 10MB, because you have confirmation faster and can handle more transaction in the same time as bitcoin, now can you share what are those tricks that segwit can brign to bitcoin?