Don't tar all Autoglym's products with the same brush though - granted most of their range are far bettered by other specialist detailing brands these days (and I could write a book on describing them tbh, as I'm one of the top posters on the detailing world website (same username as on here) and this would be my 'Mastermind' specialist subject lol!).
The stand out product being Super Resin Polish which is widely regarded amongst the detailing community as one of, if not the best, AIO products and used in the correct way (which is
not how 90% of people use it, incidentally
), it's a superb by hand an even better by machine application.
The HD wax is another of their better products, although I'd go for one of the other waxes I listed if it were my money.
Their 'Aqua wax' / 'Express Wax' (trade version) is also a great product for what it is and compares very favourably with Duragloss's identically named product in the quick top up/wet application wax sector.
A similar thing could be said of Meguiars as well - their 'consumer range' that Halfrauds stock aren't the best products in their respective sectors either (especially the 'water magnet' drying towel), but their pro ranges are amongst the top in their fields. For eg. #83 and #80 machine polishes which still have a great following despite the emergence in the last few years of the like of Menzerna. Their #16 and #26 paste waxes are also well regarded and so is Last Touch QD spray and their new Ultimate Quick Detailer.
It's like a lot of things,
you have to look a little deeper than what the likes of Halfrauds serve up to find the better products.