We use it for K-5 and I really hate it!!! Our kids are ability grouped-the stories are very boring and...the instruction is scripted-Direct Instruction....the emphasis is on comprehension and there is no enrichment...I provide supplementary instruction for fluency-using Tim Rasinski Fluency First and I use Word Ladders for vocabulary. I also use reading centers to supplement the DI. I do not like ability grouping-we take turns each year (third grade) teaching low, middle or high group and when it is my year to teach the "low" group, I feel so bad because-1. There are no models in the class for good reading and 2. The kids know they are in the low group and the behavior is not the best. Some teachers run two groups-they direct instruct while the other group is doing the workbook comprehension work from the day before and then alternate that each day. When the kids are done with their work-they go to centers. I am looking forward to an inclusive reading program.