For the record, I detail my own vehicle and several select customers. So I am in no way a true professional detailer, but I have had numerous experiences with niche/premium products that over hyped and under performed. Conversely, I have had relatively inexpensive products over perform for my details. Also, what I consider niche products may not be the same as your definition
Below is a sampling of products that I have used in the past.
Best Inexpensive Products
No Streek Glass Polish: around $2 off of Amazon. applies like a wax/let haze and you have a streak free windows.
Collinite 845: most durable carnuba based wax that I have used
Meguiars UQD: very nice beeding,gloss and longevity (for a QD)
Stoners products
Underperforming niche products
L&S 501 : An expensive AIO acryllic sealant that did not last as long, add gloss or clean as well as a more inexpensive Klasse AIO
Finish First: better than L&S but expensive compared to better products out there.
Lexol exceedingly average leather cleaners and conditioners
Griots Glass Cleaner actually works very well until you realize that you can make the same product with distilled water and a 1:8 solution each of Isopropyl alcohol and vinegar for a pittance.
For the professional detailers, I like a true real world take on your experiences on some of the premium/niche products that have/haven't lived up to your standards and any inexpensive surprises you have had.
Below is a sampling of products that I have used in the past.
Best Inexpensive Products
No Streek Glass Polish: around $2 off of Amazon. applies like a wax/let haze and you have a streak free windows.
Collinite 845: most durable carnuba based wax that I have used
Meguiars UQD: very nice beeding,gloss and longevity (for a QD)
Stoners products
Underperforming niche products
L&S 501 : An expensive AIO acryllic sealant that did not last as long, add gloss or clean as well as a more inexpensive Klasse AIO
Finish First: better than L&S but expensive compared to better products out there.
Lexol exceedingly average leather cleaners and conditioners
Griots Glass Cleaner actually works very well until you realize that you can make the same product with distilled water and a 1:8 solution each of Isopropyl alcohol and vinegar for a pittance.
For the professional detailers, I like a true real world take on your experiences on some of the premium/niche products that have/haven't lived up to your standards and any inexpensive surprises you have had.