The Stingray is a very nice amplifier indeed.
In addition to having one of the champs of tone, the EL84, it is well built and should prove reliable. You're also dealing with one of the better companies in the business, normally represented by some of the better dealers in the business - and, no, that's not a coincidence. So, you'll be well supported. Don't discount the fact that the amp is made in the USA as one of the big reasons behind this.
I'm also partial to the aesthetic, but understand that's a matter of personal taste. My one caution is that the amp is definitely not the last word in power, so keep that in mind.
Regarding how newer amps compare to older ones, I'm also increasingly discovering as time passes how special those vintage tube amps truly are.