This is a 3-in-1 seat. It is a combination seat, not a convertible seat. Convertibles go from rear facing to forward facing. This one goes from forward facing all the way to backless booster.
My daughter uses this seat and we both love it. It comes disassembled, and putting it together is a bit of work, but if you read the manual it's not that difficult.
It is very easy to install. I drive an older model Sienna and had to take the head rest off, but it is safely installed now. Every car seat tech I have talked to says this is a great seat as it can be installed in most vehicles, which is great. It's light weight, so if you do have to switch cars or travel with it on a plane it's not hard to carry.
This is the last seat my daughter will ever need, and I plan on buying one for my son when he is big enough.
I already own a Harmony Defender in black. It is a fantastic car seat and has everything I need. Most importantly, its safety is top-notch and my son finds it super comfortable. Bonus - it looks good too. Honestly, can't complain on the price; there is a lot of car seat for the money.
I just bought this new Defender in black and red as a gift for my mom’s car. I have not seen these colours anywhere else; it looks just superb!!