I have used the Bubble Jet/Bubble Jet Set combo with varying results. I have also used the Printed Treasures sheets and (at the moment) they are my preferred method.
But... a factor to also consider here as much as anything else is what your printer ink is actually made of. Even though i pre-treated the fabric as directed when i used the Bubble Jet method i did have different (and better) results between using my older Epson printer and my newer one with the “durabrite” inks. The color-fastness of the prints made with the new inks available is superior. I also tested the premade sheets between the old/new printer and found similar results.
Just some food for thought to consider any of the known variables. I have also noticed that using liquid fabric softener in the rinse when washing the finished quilt tended to fade the older composition ink noticeably. That was disheartening... but im glad that i found that out on a tablerunner instead of a bigger quilt! I used the old printer for a label on the tablerunner just to document maker/year, etc for my own items. We dont have the old printer anymore so no longer an issue!
I have also heard of varying results in consideration of whether you have a water softener (or not) or other factors associated with household water.
All things to think about, but sometimes too much to think about! And further down the road, it can all look great once it leaves you but there are a lot of things you just plain cant control at the destination! So i just do my best and try real hard not to obsess about what i have no control over!!! For awhile that was really hard 😊