That does look good... the one thing I wish chamber strings had that it does not is fast legato, but the chamber strings are very, very nice, and generally regarded as one of VSL's better libraries.
However, I would suggest you wait at least until December 16 to purchase, as VSL will most likely do a Christmas/holiday promotion.
Last Christmas, VSL ran a promotion IIRC, that was buy 3 (it might have been 4, I don't remember, fairly sure it was 3) standard libraries and/or extended libraries, get one standard and/or extended library free (standard purchase gave standard free, extended purchase gave extended free). They also did a 2nd promotion of buy one standard library, get one extended library free (limit of one free extended library with this promotion). VSL's best promotions have generally been mid-December through mid-January.
Of course, there is no guarantee that VSL will do anything similar this year, but still, it is probably best to wait and find out what the promotion(s) will be.
As for where to purchase, if going through ILIO, I would assume you are most likely in North America. It would be worth comparing ILIO's prices with Sweetwater's, as sometimes Sweetwater is slightly better (on standard libraries), though Sweetwater does not appear to offer all the available bundles. Regardless, it would still be worth checking.