I have Copper Spur 3

I also have and used tunnel tents from Warmlite and Hilleberg

IMHO - the tunnel tents are just as easy if not easier to pitch than the Copper Spur (and I LOVE our Copper Spur)

Tunnel tents - you pitch them with the rain fly already attached so if you pitch them in rain your inner tent will be dry or drier than the Copper Spur where you have to clip in the mesh inner first and then throw the rain fly over for the clip in.

Specifically comparing Copper Spur to Hilleberg ... your Copper Spur will be probably at least 2lbs lighter.