Just my opinion, but no it's not worth it lol. There are a few guys on here that still make custom sub boxes I believe for about half the cost of the jl box. Or if you know what you're doing you could build one.
Definitely not worth it. There's tons of videos on youtube about how to build your own box to your needs for super cheap. I would go this route if you had any sort of skill with building things yourself.
Everyone has their PERSONAL preference!!! YOU need to decide what you need your truck for and what are YOUR needs? Some guys want just a Little more Bass, Some want Bass so loud, they will blow doors off! If you ask me, JL stealth box is good if you have or want to keep the back seats able to fold down or want/need the space! If you DONT care about the back seating being stationary then just get a custom box, or make one, WAYY cheaper and does the job(plus you dont have to cut your center console)
I built my own and it sounds great. I removed the plastic divider between the rear seats and mounted my box there. Works as an arm rest for the back seats and front seats can still recline all the way back!
I installed 10w3 in the stealthbox in my X. I chose this box because it still allows you to fold down the back seats and has plenty of sound to fill the cab. If you are looking for proportionate bass levels and great SQ the stealthbox is a great option. If you are looking for teeth rattling bass, a custom box would be needed. As for the price tag, it is on the high side, but you are paying for JL Audio R&D and a no hassle install that looks like OEM.