I've used Hi-Tec oils. One of the local garages here uses Hi-Tec as their bulk fill. They use the semi-synthetics and offer either 10W-40 (SN, A3/B4-08) or 5W-30 (SN, GF-5). They had a third bulk tank that probably had a HDEO in it, but I'm not sure which one.
I got the semi-syn 10W-40, it was fine, but seat of the pants gave the nod to my previous fill of 10W-40 Durablend as being a bit smoother.
[Hi-Tec 10W40 SemiSyn PDS]
It's only A3/B4 2008, not the more recent 2012, but I believe this is more a reflection of it's TBN being below 10.
Typical Data 10W40 Semi-Syn
KV 40 = 93.3
KV 100 = 14.2
VI = 157
Zinc = 1100 ppm
Moly = 170 ppm
TBN = 8.4
High Zinc, good slug of moly. Some Group 3 base oil in it.
Nothing wrong with it, I see local cars driving around everyday with Hi-Tec oil change stickers on their windscreens.
They make some interesting stuff, like a SAE 50 race oil with 2200 ppm Zinc, TBN = 7.65, KV 40 = 215, KV100 = 21.5, VI = 120 that they claim meets API SN. They also sponsor a fair bit of local racing.
Some of their products and data sheets look nice, yet other products and data sheets look a little unimpressive. They use a lot of 2008 & 2010 ACEA specs, instead of 2012.
It depends on the actual oil you are interested in, the application and the price.