Got the tower probably 2 or 3 years back - it's 3 or so foot tall - mainly because Belle was very ill and had to be kept inside (hence now has no teeth - lost over 1kg in a 4kg cat.....) and also Jazz was shot at the same time..... bit sh!tty but that's it...... the cat's loved it, having ignored previous 'towers' - but Tiggs has taken over the house at the top - she doesn't fit, but being young, it's not a problem - she's a fair bit bulkier than the other two....
It's amazing how different cats are.... Belle is very friendly when the kids are in bed (i..e out of sight when the kids are about) - Jazz 'tollerates' them, but get's out of the way - she's also very noisey....and likes to stay in the house..., then Tiggy..... hmmmm.... lets the kids man handle her (literally) growls alot, but doesn't swipe them.... the other two would (they had 5 years kids free before the pains arrived)... Tiggy is a bit of a grumpy cat..... what suits her is how it is...although she's very tollerant despite the growling..........the other two are far nicer....
See you dog lovers don't realise cat's are quite nice too.....