It's good if you live in the USA. Not so much if you're from abroad.
I have an issue with the rear sight on my Henry Golden Boy .22. It shoots low and didn't seem to have any means of adjusting it. I sent pictures and a query to Henry asking about adjustment. Seems it was missing the notched ramp (stairs). 'We'll send you a complete sight for free.' Wow. Awesome, I thought. Then it was 'Oh, you're in the UK (yes, I said that in my original email) - we can't ship due to regulations.' So after a bit of back and forth getting nowhere on trying to find out what these 'regulations' were (EAR? ITAR? Doubtful.) I suggested they were sent to my girlfriend in Washington (state) and I'd collect them at the end of next month when I'm out there (my work means I'm in the USA a lot). Not a peep by way of reply.
OK, I thought, let's try the online warranty route - nope.
"Please note that this online warranty service system is for customers in the United States only. International customer tickets will not be approved. ...
For repairs in all other countries please contact the dealer where the firearm was purchased."
I bought one of my two Henrys from a dealer that went out of business a few years ago. So basically the lifetime warranty is worthless on that one. And worthless on the .22 as a private sale.
I tried contacting them via their Facebook message thingy too. No reply.
So it looks like I'll have to buy some TruGlow sights or similar off eBay or Amazon - I may as well get something better than original if I'm having to reach to my own pocket.
I'm just glad nothing has gone wrong (fingers crossed) with my Big Boy .45 because then I'd really be stuffed.
Contrast this with Pietta's response to a 25 year old 1851 Navy black powder revolver I was having issues with. I had to replace the worn out internals with one of their parts kits. Upon fitting it turned out the trigger was too long and jamming up against the rear of the guard. I emailed Pietta to find out why I was having issues. Turns out during the 25 years past that they had slightly changed the profile of the trigger guard. Without me even asking they immediately offered to send me the new style guard, back strap, grips and all the required screws. It arrived five days later. Now THAT'S service.