This would be a review but I do not have the option of making it a review because of eBay's system.
This is in regard to the Vauxhall Workshop Manual (TIS) DVD, my copy was from seller colour-smart ,so I can only write about this version and it by no means refers to all workshop manuals sold on eBay because many of the ones I have come across for different makes have been excellent.
Quite simply, unlike many others, this is not worth the effort of trying it out.
For a start, it looks like a cracked version of diagnostic software (which will not work).
Mine came on a defective disc and I spent two days (not a bit of time over two days but two long whole days) trying to install it before the seller finally sent me a download link to a working copy.
When it is running, most of the key functions are for use with a diagnostic cable or for use through dealer login and what is left is hardly worth having. The technical information is accurate but most of the images do not show so all that is left are a few descriptions of procedures.
Haynes manuals are rarely a match for a workshop manual but in this case I would say stick the the Haynes manual, it is severely lacking in detail but it beats the this no question.