I live in Bend and have a 6 year old daughter who is in first grade at High Lakes. I haven't heard bad things about any of the schools here, just not great things. My daughter had a wonderful kindergarten year and is doing fine this year. I wish she was learning more, but that's just me.
I did a lot of research on the schools before I came here and had decided on Elk Meadows Elementary at first because it is a Love and Logic school. I wasn't able to find a house in that area, so my daughter goes to our neighborhood school and it is fine. High Lakes has a very strong PTA and a they promote the arts. The principal is great and the teachers are enthusiastic and motivated. There are just a lot of kids there. I just checked my school's report card for last year and there were 709 students enrolled for K-5. The school was built for 600. I don't have this year's enrollment but it has to be higher than for last year.
They will be building out the second half of Pine Lakes this year, and there are other schools waiting to be built, but it will take some time. At least 2 years. Jewell is the fastest growing school. There are 3 magnet schools, Highland, Westside Village and Amity. The lottery for each just ended on Friday the 23rd. I don't know much about the private schools but there are several, including a Montessori.
That is about all I know on schools here. We moved here before Kindergarten too, and I spent some time on the district website. I looked at the individual school sites for information and report cards.
http://www.bend.k12.or.us
Here are the report cards for Bend La Pine schools.
http://www.ode.state.or.us/data/reportcard/reports.aspx
I also have a helpful tool for finding property by school boundaries.
Good luck!