I don't push people one way or another nor have any vested interest in any companies. I do like trying tech as it's my hobby and try and push the limits, sometimes it's a fail, sometimes it works out.
I've used some of those older blurple panels (fail for flowering Imo) and still using some I bought 4+ years ago (Top LED which was bought out by Mars) for vegging, they veg well and I like the transition from blurple to flowering lights (CMH or COBs), makes them explode nicely when they hit the flowering lights. They worked for flowering but from a yield stand point you may as well flower with hps, you'll get much better yields. Of course at the cost of managing heat which is certainly doable, many folks have done it for years. It's just tougher to dial in hps and get higher efficiency yields, but it's done by many.
@a mongo frog had a good suggestion on the 315w CMH kits, if you think you can manage some heat those 315w bulbs cover off 3x3' really well, up to 3.5x3.5 ok, but 4x4' you'd be lacking coverage and 2x 315's would be overkill and give you a hard time managing heat. Slightly less heat than hps as. the 315's are very efficient, equivalent to somewhere in the 400-450 hps range, less wattage, less heat. I used that tech for a couple of years before a recent switch to COBs and I'd peg it as the best bulb tech available. Something in the spectrum tends to finish most strains faster as well, most of my strains finished in 7-8 weeks under the 315's.
More recently like the last year or so I converted the room in steps to COBs. Don't have time/space to build myself so bought some Tasty 3590 COB's driven at 1400ma, have 3x 100w, 2x (dimmable) 150w bars, and recently added 1x 200w bar of dimmable Citizen 1212 COBs. Main difference I saw between CMH and COBs was the terpenes and frost jumped another level, once I converted 1/2 the room and saw the yields (about the same watt-for-watt as CMH) and noticed a significant difference in terpenes loudness, I converted the whole room to COBs. Expensive up-front but best quality I've ever grown.
I think the big issue people have with blurples and particularly Chinese companies selling them stems from the way they over-hype/advertise and straight up lie about what the lights can do. Imo they give LED's in general a bad name. They also tend to be behind the curve in the tech they use in the lights which can make a huge difference in yields and quality. An example of that is the Advanced LED's you mentioned. If you look at their specs (which are light on details) you'll notice that their lights with COBs (mixed with 5w or 10w LED diodes) mention they are "CXA" COBs. Because they don't specify CXA-3590, I can almost guarantee they are CXA-3070's which are 2-3 generations behind the current CXB-3590 COBs. I've used and still use some CXA-3070 COBs in my breeding tent which I've had for ~3 years. While they are good, they produce ~25% less than the CXB-3590's I run, and the terpenes/quality while good aren't the same. I would flower with the 315w CMH before using CXA-3070's, only reason I haven't used them in the breeding tent is that tent is 2x2x4' and would end up at 110F throwing the CMH in there.
Which brings me to one last point in my long winded reply. No matter what lighting tech you use, it's an important but not overriding factor in how your yields or quality results. The environment, medium, nutes, water, all have to balance or you won't get the most benefit. In other words, if you're producing .5g/sq.ft. under hps and simply change your lights, don't expect to magically jump to 1.5 gpw, you'll be disappointed with any tech you upgrade to.
I should start a woman's only thread lol!!