If you are an experienced wood worker but have not worked with IPE there is no way I can convey to you difference between what you have worked with, hard maple, oak etc. are not even in the same league. It feels and works more like a very very mild steel. Just get yourself a piece and attempt to do something with it. You will need good quality carbide bits and a lot of patience.
I needed to form some copper and needed a form that would take heat. I made my form out of IPE and I was able to cause it some damage with direct contact with an acetylene torch flame. But I had to work at it.
It is very very heavy so that has to be taken into consideration. It needs that special Gorilla type glue.
"The Wood: Ipe heartwood is light to dark olive brown, often with attractive lighter or darker striping and a beautiful grain similar to American walnut. It has a fine texture, medium luster, and a somewhat oily appearance. Ipe is very hard (two to three times as hard as oak), very strong and very heavy. It weighs approximately 70 pounds per cubic foot and sinks in water. Ipe is rated as extremely durable.