Campsis radicans

A friend has given me one of these after I admired hers last year. On searching for info on how to grow, I see several sites that call it 'very invasive', so I'm not sure where to put it. Has anyone out there had problems with one of these?

It is what I would describe as a vigorous self clinging climber, that will grow to around 20 feet up and nearly as wide, great for pergolas and arches, or in my case a warm south facing wall. It has aerial roots, a bit like climbing hydrangea and ivy. Mine is the cultivar 'Indian Summer', and in three years has not got beyond around 8 feet tall. It needs a warm spot to flower well. 

I have had one of these in my garden for a few years.  It's on an east facing wall and I find it quite well behaved - I keep it to about 6 ft tall and it is currently about 10 ft wide although I am hoping it will spread a bit more. It is a good plant for the future if the water shortages should get worse as once established it does not need to be watered.

Thank you both I'll bear your comments in mind.