I very occasionally go there, when I'm too lazy to go to Kensington market or Metro but i just pick up single items because everything is ridiculously overpriced. And knowing that i can get the exact same product for far less somewhere else really doesn't make me want to spend a lot of money in this store.
Staff doesn't seem to care much about your presence and is unfriendly.
I once went there with my crawling baby and had to put her down for a second to look at something on the shelf and she had shockingly black hands and knees when i picked her up. I highly doubt that those floors get washed on a frequent basis.
My recommendation: Walk the few extra metres to Metro or Kensington market.