I have the Rowenta travel with steam and love it.
It dosnt get as hot as a big iron but for piecing that is what you want. It does not distort your blocks.
You do have to add water alot because the tank is small.
It handles so well I use it for all my piecing and use a large cheap iron for large pieces of fabric before cutting.
I think I paid about 39 dollars for my Rowenta. Try using a Joanns coupon.