The Chieftains debut album is as good as any debut album you'll find and better than most. This is all the more impressive considering it actually has a few things working against it, in comparison to later Chieftains albums. Consider:
A) Sean Keane did not join the band and appear on record until 'Chieftains 2'.
B) The late, great Derek Bell did not join and first appear on record until 'Chieftains 4'.
C) Matt Molloy did not join up until much later (after the demise of both The Bothy Band and Planxty).
D) The bodhrán player on this album, David Fallon, was quite elderly at the time and left the band not long after this album was recorded. Not only is this the only Chieftains album that he appears on, but it is widely believed that this is the only time that he was ever recorded.
E) At the time of it's recording, the Chieftains were still largely viewed as belonging to Sean O'Riada's project Ceoltóirí Chualann. It was not until later that they were able to devote themselves full-time to developing the Chieftains, which also explains the very large gap between the first and second albums.
So you see that this debut album has a much more complicated backstory than most, which makes the music that much more impressive. The material holds up very well and for having been recorded in a small Irish studio in the early '60's, the sound quality is quite good!
The Chieftains are the ultimate "late-bloomer" band in that their strongest line-up and best albums came into being after they had already been around for many years, but if you're curious to get a glimpse at how it all began, this album is well worth a buy and listen.