Alli-Express is the retail division so by & large you are dealing with retail & wholesale merchants.
I have had no problems but I use the same filter as ebay and check what else that vendor is selling and only purchase from those that sell nothing but mower / engine / motorcycle etc stuff.
I buy most from Alli-Baba because that is B to B so you are dealing directly with the manufacturer / distributors so no rubbish merchants with stock rescued from the scrap bin
Because it is set up as B to B all items have minimum order quantities but just about all of them will allow a "sample order" of 1 to 5 at a slightly higher price .
For me the biggie is they have no tie in with the tax office so do not add the 10% gst that Evil Pay does and will ship by what ever means I request .
Being you are dealing with factories , many will list their customers as an example of the quality of their products so I come across factories that claim they are making the goods I buy from my wholesalers which gives me a second supply source and I do buy some products direct where the wholesale mark up is a bit excessive , Vanguard & Kohler air filters & plastic fuel filters & taps .And of course some list B & S , Kohler, Honda , Kawakasi , MTD etc as their customers
A 50 pack of filters which end up just over $ 1 is a lot better than $ 3.50 - $ 4.75.
If I had the space then I would have ordered 1000 which would have been less than 50¢ delivered , but that is near 10 years worth .
So now I will stock & fit only 4 filters , a long & cone shaped universal filter, a steel cased one for EFI engines and an aluminium one with a washable sintered brass filter of fire pumps .
I have been temped to buy some B & S cams but a min order of 100 is a bit too big to swallow considering I only fit 1 or 2 a season & funds are tight right now but if this season keep on the way it is going I might have a shot next year.
the big problem with both of them is their search engines suck.
So do the searches after hours with a coffee / wine / beer in hand and be preparred to spend a long time because while the site is in English , all of the vendors are Asian so translations of descriptions can be a bit funny
Cam shaft = open valve mechanism from one factory in Vietnam
Overall I could not be happier with the service which seems to have been set up to exclude dishonest trade where as Ebay & Amazon seem to have been set up for the benefit of dishonest trading.
No screen names or Avitars on Alli so genuine factory / business names ( some times in the native language ) and you will be listed under your company name.
But dealing with "lucky one you 2" on Ebay / Amazon does not make one very confident about the vendor to start with .\
Made in China is even better as it is almost 100% factory or factory distributors .
MiC prices tend to be lower but qualtities tend to be larger and their search filters are almost useless so search for Brigs & Stratton Carburettor with bring up thousands of listings many of which will be the same company - different product + every other carburettor.
Searching with B & S part numbers again bring up some B & S carbs + 10,000 non related items.
But the best things about all of them is they only ist the stock they have on hand or can make in a given time ( lead times seem to be accurate ) .
So no more ordering & paying for parts then waiting the better part of a year for it to arrive .