I'd give it 4.5 if I could. This was the album that got me started on BTS about 2 years ago, so I agree with the people saying this is a good way to get introduced to the band. This album, more than any other I've heard from BTS (or probably anyone, for that matter) has absolutely amazing guitar work.
The two 19 minute tracks are excellent. The meandering guitar on Cortez the Killer is pretty good (and that's the best Neil Young impression I've heard), but the real jewel is Broken Chairs, with its awesome buildups and creshendos.
The Plan, Randy..., Stop the Show, and Car are all significantly better live, as the guitar is allowed to stand out more. And Virginia Reel is amazing. The guitar on that one soars. Seriously, with that song I put on the headphones, close my eyes, and imagine soaring through the clouds.
So overall, this album is really special. If not for Singing Sores, which lacked the interesting guitar work found everywhere else, and Hurt a Fly, which was the exception by being better in the studio version, this would definitely be a perfect album.
If you love great guitar, you really should own this.