I know this is answered, but I think I can do some more than that's already been done.
Now, stats first. I will show stats then pick out some good things, and bad things.
HP 70 250 - 344
ATTACK 80 148 - 284
DEFENSE 102 188 - 333
SP. ATK 80 148 - 284
SP. DEF 102 188 - 333
SPEED 40 76 - 196
The most obvious points are the impressive defence and Special defensive stats. This combined with Heal Order, a rare recovery move among Bug types. This means it can stall out on the field much better than other Bug types. Decent offence is possible too.
Unfortunately, that low HP stat doesn't do any favours on the stalling front however. Meaning it can't really take repeated hits. Another downside is that walls can't really afford to lose half their health while switching into stealth rocks. As said, those weakness don't help it's cause either. It doesn't have that many useful resistances other than a handy fight type resist.
Vesp has a very trolly and impressive movepool. It has many physical and attack moves to play around with on the offensive front. Heal order, defence order, Toxic, swagger, Destiny Bond, thief and sleep talk all are very effective stalling moves. Although, with some of these moves, it is too slow to use them. Ones like Destiny bond require out speeding then enemy, and with some of these need to take some heavy hits to pull off.
Ok then Moveset.
Vespiquen (F) @ Bug Gem
EVs: 68 Atk / 220 Def / 220 SDef
Careful Nature (+SDef, -SAtk)
Set by trachy.
Right so conclusion.
Although with these decent stats, it lacks overall to stall that well, doesn't have the power to get past walls, but has a very decent movepool and a few useful resources and niches. But all those seem overshadowed by the weaknesses and average stats. So I would say no.
Hope I helped xD