The Huntsman is an excellent choice, and was my 2nd air rifle. I've now had it 3 years, and use it to shoot matches every week, as well as occasional pest disposal. I wasted $ before that on a package: Nitro piston springer + crappy scope bundle; then I upgraded the scope (I gave it away when I got huntsman which I fitted with an Optisan Mamba Lite). All this could have been avoided if I'd started out with a decent rifle like the Huntsman.
By starting with a decent rifle, that potentially you can keep for many years, you are ahead of the game. As for advice: what do you plan to use the rifle for? Huntsman is an excellent small varmint rifle in 0.22, and decent for target shooting. Its no good for FT. Its no good for larger prey, or to be competitive in long distance target competitions (75 and 100 yds). The biggest issue is how will you keep it filled? You need HP air, preferably from a CF tank filled to 4500 psi. Depending on how you plan to use the rifle, and how much you shoot, go for either a 'guppy' sized 18 cu Ft tank or a 97 cu ft tank. The former is great for taking to matches, and in the field; the latter is better if you don't need a portable air source, or if you can see purchasing more weapons in the future (it happens). And ... you need some easy way to fill the tanks.
Finally - scope and rings. Don't make my mistake and buy a cheap unit. The Huntsman is an accurate rifle and benefits from decent optics. Shell out once, and you won't waste $ upgrading later on.