Good Pink Floyd album...in fact one of their greatest! But, for me, I'd have to go with their 1st, "The Piper at the Gates of Dawn". Or "Saucer Full of Secrets".
Solid LP for sure! But I wouldnt say best, its actualy hard to pick a best Floyd LP with me bein a die hard fan. But.. of this era of Floyd though (mid-late 70s) id say the next 2 LPs (Animals and The Wall) were prob my faves. But the album in question is solid. "Welcome To The Machine" is amungs my fave Floyd tracks of alltime.