I acquired this LP (as it was called then) almost by accident in the 70's, and even then couldn't understand why none of my friends had it or had even heard of it...it seemed to be some kind of 'secret'. But it was THAT good!
So huge joy when I saw that it was, at last, available in CD format. I purchased it partly for nostalgic reasons, but truth is it's still a great listen, and not in any sort of ironic way; it's still contemporary.
The list of musicians is a 'who's who' of 70 guitarists/vocalists (so many it's not worth mentioning, and anyway would spoil the discovery), but mostly it's just the strength of the songs and sympathetic vocals that make it.
If you like 70's singer-songwriter-rock-country'ish (e.g. Dylan etc) just take the gamble, you won't regret it...in fact you'll probably go off raving to your mates that you've unearthed a 'secret'.