DSA's claim to fame was that their swords could take a lot of abuse- so they overbuild them to withstand some of the tests you can see featured in videos on their site. The proprietor, Eyal Azerad, isn't a bad sort- I think he's made some questionable decisions in the past that continue to haunt him. One incident comes to mind- on SFI (Sword Forum International) there was an artistic collaboration between Angus Trim, John Lundemo and Adrian Ko (SFI site owner) to make a fantasy sword based off of the LOTR canon. It came to fruition as Glawar - a really pristine Tolkien-style leaf shaped long sword; but two other collaborations also occurred- Paragon, a single hand broad sword, and Templar - a medieval inspired bastard sword, with 'Militaris Templi' engraved in the fuller. I really liked that sword for all of the obvious reasons...apparently, Eyal liked it too because he copied the design and began selling it and a whole shitstorm set off from that. He ended up pulling the model I believe.
I had the first run of the DSA Ranger...it would have been worth the money if not for the aesthetic issues (uneven finish, rust spots on the fittings, scratches on the blade, the scabbard chape did not fully center with the cross guard, dings on the scabbard) - and that for a 48" sword it weighed nearly 5 lbs! I wasn't in love w/it so Eyal gave me a quick refund and I sent him back the sword.
I did get to handle Sir Nathan's DSA Knight, which was head and shoulders above what I'd gotten in terms of quality, fit and finish; a little on the short side for the typology they might have been aiming for (XII) but it is a nice sword. Their Henry V might be closer to the mark in terms of typology but they do not do any sort of hollow grind on the blade so it won't be as historically accurate as, say, the Arms & Armor model.
As with anything where quality is an issue, you get what you pay for. IMHO, some of the Windlass swords are nearly as good for less, you can get a better selection than what DSA offers- unless its a sale, and even then you might still win out with Windlass.
One other thing, when they say blunt, they mean it usually- my Ranger had a 2mm or 3mm edge iirc, still dangerous though.