Are they crap compared to $1,500 full complete/racing/JDM/real/dampening adjustable/ coilovers, well, yeah. But if you don't drift/race/auto-x/drag + can't appreciate them it's a waste of money.
Most of us could buy another 240sx for $1,500, right.
It depends on what you wanna do-
most people just want to lower their 240 an inch to inch and a half on stock shocks and just drive on the street- but some guys on here will try and convince you you HAVE TO SPEND $1,500 or you're not cool. Let's see what happens

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Please give us more info- why do you want to lower your car- what do you do with your car- what is your budget.
If you want to lower your car a little- these are just fine.