The Original Family were a highlight of The Vampire Diaries, so for them to have their own spin-off series is superb. I originally believed that the series would be far shorter than a regular season of TVD, and as such believed this would be a good thing as the stories would be progressive and straight to the point, thus opening the door for the family to return to TVD in the second half of TVD Season 5.
However, the series is actually far longer and while this will probably prevent the family from returning to TVD, it provides a ton of enjoyment for fans of the Originals and as time has progressed the stories have instead developed phenomenally and do not require quick endings. I personally look forward to the rest of the series flowing through and watching it alongside TVD. In addition to this, a second season has been commissioned so there's even more to look forward to than previously thought.
To conclude, I will definitely be purchasing this on release, and would fully recommend it to anyone else.