I didn't "hate" them. However, the two stories were a mixed bag for me.
Lost Tales:Over Here (the Locksley episode) was weak - while it had some decent moments, I think the plot was - as BANE mentioned above - on par with some of Season 5. Mediocre.
Lost Tales: Over There (the Sheridan episode) was much better. To me it seemed to "fit" well into the B5 mythos.
One comment Havok touched on - while the CGI was very well done, the live action sets were dark and sparsly populated. It really stood out in Locksley's episode since it was supposed to be set on the B5 station. Much of both episodes felt like I was watching a play with 2-3 actors on a dark stage.
Of course, given that JMS is probably working off a tight budget, that may be the best he could do with what he had.
Overall - glad I bought it. I hope the next DVD release is as good as the Sheridan episode.
"Any ship can be a minesweeper ... once!"