The most important thing is that this algorithm can be used for solving problems of large size (big data). Also, it has been proven by many experts from Google as well as IBM itself! This product was created with great care so I have no complaints at all about its quality or features; everything works perfectly fine without any issues whatsoever. It's quite expensive but if you are looking forward towards having an efficient solution then definitely go ahead because there isn't anything bad here either like some other reviews might suggest. There aren’t really too much things one needs to worry over when using QBR since nothing seems wrong overall except price factor only!! We use qbr toolkit mainly along side our machine learning algorithms where we need high throughput computing power hence why they were chosen together after comparing them both very carefully.