The slackline is very good, and can be adjusted to be very or hardly slack, so you can continue to make it harder for yourself. Its fun, and only takes 1 session to be able to confidently stand. The shipping was very fast, and the packaging was also very good, so the product wasnt damaged. The only bad part was:
You need strong anchor points to asemble, so unless you have trees close to you, you may have to make a trip to the park every time you want to use it.
The drawstring bag provided was broken when the product was opened, but it didnt really matter, because you dont buy the slackline for a bag, and you can cheaply replace it if you really want one :)
All in all, a very good, reasonably priced slackline. Well worth the effort of buying it.